The 8c Slate Parliamentary Library Stamp of the 1967-1973 Centennial Issue Part Three
The CBN coil stamps with OP-2 tagging were issued at the same time as the untagged stamps, on December 30, 1971.
Unitrade lists two varieties of the OP-4 tagging, one with dextrose gum and the other with PVA and lists three varieties of the OP-2 tagging, all with PVA gum. There is also a scratch on the forehead variety listed for the OP-2 tagged stamps. Interestingly, there is no listing for the extra spire variety on these stamps, even though they likely should exist with OP-4 tagging. No fewer than five varieties are now listed for the coil stamps, in addition to two varieties of imperforate pairs. This is far more coverage than was afforded these stamps even a few years ago. So, more and more discoveries are being made for this set all the time.
The remainder of this post will now go over the printings of the sheet stamps in more detail. I will deal with the coil stamps in next week's post, which will also discuss the booklet stamps.
The OP-4 Tagged Sheet Stamps - Unitrade #544pi and 544pxix
Paper Characteristics Other Than Fluorescence
I have found three types of paper used to print these stamps, ignoring the fluorescent properties:
- A cream coloured, horizontal wove paper, that shows clear vertical ribbing on the printing face. The paper is very lightly coated on the surface, as can be seen under magnification. When the paper is held up to a strong back light, a very strong vertical mesh pattern can be seen.
- A cream coloured, horizontal wove paper similar to that above, but with less obvious ribbing on the surface. When held up to strong back light, a clear vetical mesh pattern is still visible, but is less prominent than in the first paper type above. This paper is also lightly coated on the printing surface.
- A whiter, horizontal wove paper, that shows clear vertical ribbing as the first type above. The paper is very lightly coated on the surface, as can be seen under magnification. When the paper is held up to a strong back light, a very strong vertical mesh pattern can be seen.
The whiter paper is shown by the block on the left, while the cream paper is shown by the block on the right.
Unitrade lists this stamp as existing either on non-fluorescent paper for those printings with dextrose gum, and on high fluorescent flecked paper for those printings with PVA gum. I do not have any examples of the PVA gum printing to work with in preparing this post, so unfortunately I cannot comment on the paper fluorescence of those printings. However, I have found no fewer than 6 subtle varieties of dull fluorescent paper, one of which is very close to being truly non-fluorescent. Unitrade calls this non-fluorescent, but in reality it is really different variations of dull fluorescent and dull fluorescent flecked paper. The scans below show the different types:
The block on the right is the dull fluorescent greyish paper, containing no fluorescent fibres. The paper of the block on the left is dull fluorescent greyish white with no fluorescent fibres.
The block on the left is dull fluorescent bluish white, with no fluorescent fibres, while the block on the right is dull fluorescent greyish, also with no visible fluorescent fibres in the paper.
The block on the left is non-fluorescent greyish under the UV light, with very few low fluorescent fibres visible in the paper. The block on the right is dull fluorescent ivory grey, also containing very few low fluorescent fibres.
I have only found one shade of ink on these stamps, though all of the stamps and blocks that I have in my possession are the dextrose gum varieties. The shade is a deep bluish slate that has a fairly good balance of blue and slate. The shade is shown in the scan of the block shown below:
The dextrose gum found on these printings exists in three of the four types that I have previously discussed: high gloss, semi gloss and semi-smooth. I have not yet seen an example of the crackly gum on these stamps. The pictures below show all three types of gum:
The high gloss gum is shown in the bottom block in the picture above, while the semi-gloss gum is shown in the top block.
I haven't seen the PVA gum on the one printing that is listed by Unitrade to exist with PVA gum, being the high fluorescent flecked paper. However, as I will note in the next section dealing with the OP-2 tagging, all of the PVA gum that I have seen on these stamps has the same appearance: a cream coloured, smooth PVA gum with a satin sheen.
The perforation on these stamps remains at comb 12.5 x 12, following the exact same configuration as the earlier printings, in which the side margins of the sheets are fully perforated through, but only a single extension hole appears in the top and bottom sheet margins. I have not found any variation in the gauge, or configuration of the perforation.
The OP-4 tagging was applied in 4 mm wide bands that ran down the vertical perforations of each column in the sheets. The spacing between the tagging bars is 20 mm in the horizontal direction. In all cases that I have examined the taggant has become coloured by the printing ink, so that the tagging bars appear a very light azure colour in normal light, as shown by the following scan:
Curiously, there are no listed plate flaws on this stamp even though it is more than likely that the PVA gum printings were from plate 4, and it is on plate 4 that we see the extra spire variety. Of course, many of these stamps can be found with the over 75 constant cylinder varieties that can be found on these stamps.
Bringing it All Together
All of these stamps were trimmed before distribution to the post offices, so there are no plate blocks to collect - only blank corners, of which there are up to 12 different collectible positions, depending on the width of the selvage tabs. I have noted three different types of paper, each of which could exist in at least six different grades of fluorescence, and each of which can exist with three different types of dextrose gum. Assuming that only one variety of the PVA gum printing can exist, there could be up to 3 x 6 x 3 = 54 different varieties of the dextrose gum stamps, and up to 54 x 12 = 648 collectible corner blocks.
The OP-2 Tagged Sheet Stamps - Unitrade #544piv, 544pv, 544pvii and 544pviii
Paper Characteristics Other Than Fluorescence
Unitrade lists this stamp as existing on smooth paper and vertically ribbed paper. The smooth papers are listed for both listed varieties of fluorescence, while the ribbed paper is only listed as existing on the high fluorescent paper.
The ribbed paper found on these printings is very strongly ribbed on the face, with the vertical ridges being very obvious to the naked eye. The paper is horizontal wove and is very lightly coated on the printing surface, as can be seen under magnification. The paper is a light cream colour when viewed against a stark white background. When held up and viewed against strong back lighting, the vertical mesh pattern is highly visible in the paper.
The paper of the plate 5 and 6 printings has a smooth appearance, with no ribbing visible, is lightly coated on the printing surface, has a slightly bluish appearance from the printing ink used to print the stamps and shows a clear horizontal mesh pattern when viewed against strong back lighting. The paper from plate 7 is much the same, except for the colour: plate 7 paper is a definite light cream colour, whereas plate 6 and plate 5 paper is white with a bluish undertone.
The scan below shows the difference in appearance between the cream paper of plate 7, versus the bluish-greyish white paper of plates 5 and 6, when viewed against a bright white background:
Unitrade now lists two levels of fluorescence for these printings:
- High fluorescent.
- Low fluorescent flecked with fluorescent fibres.
- A dull fluorescent greyish paper that has a sparse concentration of low fluorescent fibres and a very sparse concentration of brownish woodpulp fibres.
- A medium fluorescent paper similar the medium fluorescent paper that I have identified on some of the plate 6 printings above.
- A white high fluorescent paper, which is really dull fluorescent greyish white, containing a low density concentration of low fluorescent, medium fluorescent and high fluorescent fibres, plus a sparse concentration of
- A cream coloured high fluorescent paper. This paper is also dull fluorescent greyish white, with low density concentrations of low, medium and high fluorescent fibres, as well as very few brownish woodpulp fibres.
This is the cream high fluorescent paper.
This is the whiter high fluorescent paper, shown against a block of the regular plate 7 high fluorescent paper.
On these stamps each plate seems to have resulted in stamps that are a distinctly different shade of slate. The shades seem to be uniform within each of plates 5, 6 and 7, and this uniformity may well be an aid to identifying singles and blank blocks by plate. The plate 5 printings seem to be a pale greyish slate shade that contains much less blue to the point that it appears more greyish than bluish. The scan below shows a side-by side comparison of this shade next to the deep bluish slate of the OP-4 printing:
The stamps from plate 6 are a deeper version of the greyish slate shade, which clearly contains more black and grey and less blue. It is shown next to a plate 5 block to illustrate the difference in the shades:
The printings from plate 7 are a clear slate greenish blue, which contains more blue and green than it does black. It is a very distinct shade, as the following comparison scan shows:
The gum found on all of these stamps is a smooth, white PVA gum with a satin sheen.
The perforation on these stamps remains at comb 12.5 x 12, following the exact same configuration as the earlier printings, in which the side margins of the sheets are fully perforated through, but only a single extension hole appears in the top and bottom sheet margins. I have not found any variation in the gauge, or configuration of the perforation. However, there is one important difference: the perforations have been made using more than one strike of the comb perforator. This is apparent from looking at the side perforations. Here, we can see an uneven spacing and misalignment of the horizontal perforations where one comb strike ends and the other begins. This can be seen in the scan below:
The tagging bars are 3 mm wide on these printings, rather than 4 mm. The horizontal spacing between the tagging bars is 21 mm rather than 20 mm. On the plate 5 and 6 printings, the bands have often picked up some of the printing ink and appear light azure on the stamps and blocks. Later printings from plate 7 have not been affected by this discolouration on any of the stamps and blocks that I have examined. On these printings, the bands are almost invisible, except for a shiny area on the paper where the tagging bars are. The scan below shows these differences.
Rose lists three tagging errors for each of the main leels of fluorescence: high, medium and low fluorescent. The three errors listed for each are of course:
- G1aC - 1 central tag bar
- G1aR - 1 tagging bar at right
- G1aL - 1 tagging bar at left
These stamps are printed from plates 5, 6 and 7, so there is no "extra spire" flaw known on them. Unitrade does list a scratch on the forehead variety. It appears as two horizontal lines at the upper left of the Queen's forehead. Unfortunately, I do not have an example to illustrate at the present time, but will add an image as one becomes available. As is the case with the OP-4 tagged printings, these stamps can be found with the over 75 constant cylinder varieties that can be found on these stamps.
Bringing it All Together
Unlike the earlier OP-4 printings, these stamps were not all trimmed before distribution to the post offices, so that it is possible to collect plate 5, 6 and 7 blocks, as well as blank corners, of which there are up to 12 different collectible positions, depending on the width of the selvage tabs. So:
- For the vertically ribbed papers, I have identified 5 levels of fluorescence and three possible tagging errors, for a total of four different types of tagging. So for these papers there are potentially 5 x 4 = 20 collectible stamps and 20 x 12 = 240 collectible corner blocks.
- For the plate 5 printings, I have only one type of each attribute except for the tagging and therefore potentially 4 collectible stamps, 16 plate blocks and 48 blank corner blocks.
- For the plate 6 printings I have found two different varieties of fluorescence, but otherwise all other attributes would appear to exist in only one variety. So there could be as many as 4 collectible stamps, 16 collectible plate blocks and 48 collectible corner blocks.
- For the plate 7 printings I have found three different varieties of fluorescence, but otherwise all other attributes would appear to exist in only one variety. So there could be as many as 3 x 4 = 12 collectible stamps, 48 collectible plate blocks and 12 x 12 = 144 collectible corner blocks.
After nearly a year of development, the Brixton-Chrome Website is now live, with over 1,350 or so stamp listings from the 1917 Confederation Issue through the 1972-78 Caricature Issue. I decided to bring it online sooner, rather than later, so that I could obtain feedback from customers as I develop it and move toward the July 31, 2018 grand opening. So, please feel free to go on there and get acquainted with the layout. Paypal is working now, as are payments by credit card.
You can visit the website by clicking on the following link:
Feedback received so far these first two weeks from customers has been extremely positive. Most have commented on the ease with which they can browse listings without having to use the search function. Unlike most stamp websites, you can browse by:
Item type, i.e. single stamps, plate blocks, booklets, covers, first day covers and cancellations, full sheets, used multiples and varieties.
Condition and grade, i.e, mint and used, as well as the major condition grades.
Price range - our stamps are organized into 8 price ranges, from under $1 to over $250.
The base currency of the listings is US dollars because the software that drives the site is hosted out of California. However, there is a currency translation feature that allows you to select a display currency for all the prices that you see as you shop.
My inventory that is currently running live in E-bay will be transferred over to the site over the next 10-12 weeks. 1,500 or so items that were created on E-bay, and that cannot be easily transferred over, will be placed on sale at 25% off the normal prices until July 31, 2018, after which time they will be listed on the website as new listings. If you wish to shop for these stamps, you may access the listings by clicking on the following link:
The issues that will be on sale are generally all issues up to the end of the Admiral issue in 1926, and the Karsh and Wilding Issues from 1953-1962.
By far the most exciting aspect to shopping on the website will be the discounts. We give discounts ranging between 5% and 20% on all orders over $10 USD. Customers who register an account with us prior to July 31, 2018, will qualify for a special discount regime, in which they receive an additional 5% off at every level of discount offered, FOREVER. This means that every single order will be discounted by anywhere from 5% to 25%!
To become a registered Brixton-Chrome customer, simply go to the login page from one of the menus located on the home page, at the top, right side or bottom of the page, and follow the instructions. You will need to enter your e-mail address and select a password.
I look forward to your feedback. I plan to gather up all feedback received over the next few months, and engage a professional programmer to assist me to make any required cosmetic and functional changes that customers have indicated would enhance their shopping experience.
Happy stamping everyone!