The 20c Quebec Ferry Stamp of the 1967-1973 Centennial Issue
According to Unitrade, the printings with dextrine gum were in use from February 8, 1967, when the set was first issued, until May 1972, when the printings with PVA gum replaced them. The life of these later printings was very brief, as the 20c Prairies from the Caricature Issue was issued on September 8, 1972. The Winnipeg tagged stamps appeared on December 9, 1969, on cream paper with dextrine gum, and these were replaced by printings on whiter paper, with PVA gum in May 1972 as well.
The remainder of this post will explore the attributes of all the printings of these stamps.
Paper Attributes Other Than Fluorescence
Apart from the fluorescence level of the paper, there are other attributes of the paper that differ between printings. The following paper types have been found in studying these stamps:
- A cream coloured horizontal wove paper, that shows clear vertical mesh when viewed from the back, and when held up to back lighting. The printing surface has a very light surface coating which prevents loose fibres from appearing on the surface. This paper is generally only found with dextrine gum. Quite often the vertical mesh will actually be visible on the gum as light ribbing. When viewed against strong back lighting, in addition to the vertical mesh, a clear horizontal mesh is also visible, so the paper appears to be woven in both directions.
- A whiter vertical wove paper that also shows very clear vertical mesh when viewed from the back and when held up to back lighting. The printing surface also has a very light surface coating on it as well. This is the paper typically associated with the hibrite level of fluorescence.
- A whiter horizontal wove paper that shows no mesh pattern at all when viewed from the back, but shows a faint horizontal mesh pattern visible. or when held up to the light. When you look at the printing surface under magnification, you can see a light surface coating, and you can also see that the paper has a slightly bumpy surface. This paper is only found with PVA gum.
- A cream coloured paper that is identical to (1) above, but instead of being horizontal wove, is vertical wove instead.
- A cream coloured, horizontal wove paper that is the same in all respects as (1) above, except that the vertical mesh is not visible unless held up and viewed against a strong back-light.
- A deep cream coloured vertical wove paper, that has a light surface coating. There is no mesh pattern visible at all, either when viewed from the back, or when the stamp is held up and viewed against back lighting.
- A cream coloured vertical wove paper that has a light surface coating. There is no mesh pattern visible at all, either when viewed from the back, or when the stamp is held up and viewed against back lighting.
The cream paper is shown on the left, while the whiter paper is on the right. As you can see, the cream paper has a somewhat yellowish appearance compared to the whiter paper. The whiter paper is found with dextrine gum on those printings with hibrite fluorescence, and on the PVA gum printings. The cream paper is confined to the printings made before August 1971.
The next picture shows the gum side of two stamps on each of the first two paper types. In the picture you can clearly see the vertical ribbing in the gum:
Unitrade lists four levels of fluorescence for these stamps, three of which are shown above:
- Non-fluorescent (not shown).
- Dull fluorescent (top right).
- Hibrite (top left).
- Low fluorescent (bottom).
This first scan shows the first group of dull fluorescent papers. They all appear grey under UV light, that contains a slight yellowish tinge. So I call this the ivory grey. The stamp sitting on top of the blocks contains no fluorescent fibres, while both blocks contain different concentrations of fluorescent fibres. The block on the left contains almost none: just 1-2 low fluorescent and maybe another 1-2 high fluorescent fibres on each stamp. The block on the right contains very few medium and high fluorescent fibres.
The next two types of dull fluorescent paper are shown in the next scan. The grey paper with minimal fluorescent fibres is shown at the upper left. The stamp at the upper right is whiter and bluish, so I call it the bluish white paper. It contains a very sparse concentration of both medium and high fluorescent fibres. The stamp on the bottom is the greyish white paper and contains very few medium and high fluorescent fibres.
Here is an example of the dull fluorescent deep grey paper that contains almost no fluorescent fibres in the paper - just a few medium and high fluorescent fibres. It is also a good example of the vertical wove paper, as can be seen from the way in which the block is curling (from side to side).
Here is the dull fluorescent ivory paper. It looks quite a bit more yellowish than this in actuality. This paper contains no fluorescent fibres.
As is often the case with the so called hibrite paper on this issue, this stamp shows variations in the brightness of the paper, such that there is a true hibrite level of fluorescence, as well as a slightly duller high fluorescent level. The picture below shows the difference between these two levels of fluorescence:
Low Fluorescent Papers
There are several different shades of the blue ink to be found on this stamp. Generally the original printings are in a much deeper shade of blue, which becomes brighter as time progresses. The shades that I have found on these stamps are shown in the scans below.
The first two are dextrine gum printings on dull fluorescent and hibrite paper:
The deep bright blue is found on the dextrine gum printings well as the PVA gum printings.
There is a paler version of the deep bright blue, which for lack of a better term, I would simply call the bright blue. It has been found on some of the dextrose gum printings, including those with Winnipeg tagging. It is shown in the scan below:
Under UV light, the inks appear close to black, but are still identifiable as shades of dark blue, for all printings except the high fluorescent/hibrite papers, which appear black. Therefore the inks used for all printings except the high fluorescent and hibrite can be classified as non-transformative, while the other inks are all transformative.
In carefully studying these stamps, I have found seven types of the dextrine gum and only one type of the PVA gum. All are illustrated below:
The next type is also a light cream, smooth gum that has a glossy sheen:
This picture is not 100% in focus, because the camera just would not focus for some reason. However, I believe that I have been able to capture the glossy sheen, from the light reflected off the surface.
The next two types of gum are a deeper cream colour and are both smooth. The top stamp has gum that exhibits a semi-gloss sheen, while the bottom stamp's gum is slightly duller, exhibiting a satin sheen.
The next types are both highly streaky and have a semi-gloss sheen:
I have found all four line perforations on all printings of these stamps, including the printings with PVA gum. So, the possible perforations are: 11.85, 11.95, 11.95 x 11.85 and 11.85 x 11.95.
The configuration of the Winnipeg tagging on this value is the same as on all the other high values. The width of the bands is 8.5 mm and they were applied down the vertical perforations, with 1 mm narrower horizontal spacing between bands on the outer columns of the sheets compared to the inner columns. They were also applied in two operations, with the first set of bands applied to the top three panes in the print layout, and then to the bottom three. Thus, corner blocks from the bottom positions in the upper panes and the upper positions of the lower panes will all show gaps in the tagging, where the first tagging application ends and the second begins. Lower positions from the lower panes can thus always be identified by the fact that the tagging bars terminate well short of the bottom of the selvage, with no evidence of a second band.
In terms of visibility, on the the dextrine gum printings I find the bands are a very pale yellow in normal light, and are not difficult to see, but at the same time are not obvious. Under UV light, they appear a light bluish white, as shown in the picture below:
On the PVA gum printings, the intensity of application does vary, so that on some stamps the bands appear a deeper yellow in normal light than on others. Under UV light, the bands appear more yellowish than bluish.
The picture below shows the variations in intensity of tagging bars that can be found under UV light:
According to Rose, both the dextrine gum and PVA gum printings exist with G2Ac tagging errors, in which a single wide tagging bar appears at the centre. These are very scarce and highly sought after.
I have not discovered any plate flaws of note on this denomination, nor have I come across any plastic flow varieties.
Putting it All Together
The dextrine gum stamps were printed from two plates. For these, I have identified:
- 6 types of paper.
- 15 levels of fluorescence.
- 3 shades.
- 7 gum types
- 4 different perforations
- 4 different types of tagging - light and dark, narrow and wide spacing.
- 2 levels of fluorescence
- 1 type of paper and gum
- 1 shade
- 4 perforations
- 1 plate - all stamps came from plate 2.
- 4 types of tagging - light and dark, narrow and wide spacing.
After nearly a year of development, the Brixton-Chrome Website is now live, with approximately 1,925 or so stamp listings from the 1857 Newfoundland Pence 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 grand opening. I had originally aimed for July 31, 2018 as my date for the grand opening, but the migration from E-bay is taking much longer than anticipated, so I doubt I will be ready before the end of December 31, 2018. I have moved my estimated date back three more months as of last week because I do not wish to only spend time relocating old E-bay listings, but I wish to list new material as well. That being said, I would encourage you all to visit the site and get acquainted with the layout. Paypal is working now, as are payments by credit card.
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