The 2c Pacific Coast Totem Pole Stamp of the 1967-73 Centennial Issue Part Two
The basic varieties of tagging, and the dates on which they were first introduced are:
- The Winnipeg 2-bar tagging, which was introduced when the set was issued on February 8, 1967. Such stamps only came with dextrose gum.
- The Winnipeg centre bar tagged examples with dextrose gum. These were first issued in December 1968.
- The Winnipeg centre bar tagged examples with PVA gum. These were first issued in March 1972.
- The general Ottawa tagged examples with PVA gum. These were first introduced in December 1972, and remained in use until the 2c Laurier stamp of the next series replaced them in October 1973.
The block on the left is light green on the Stanley Gibbons colour key. The block on the right is deep green on the Gibbons colour key.
- Cream gum with a satin sheen.
- Cream gum with a semi-gloss sheen, and,
- Light cream gum with a very glossy sheen.
Here, you can see, from the narrow selvage at the base, and the wide selvage at the right, that this block is from the upper right pane. If you look at the lower selvage, you can see a wide break where the tagging bars end, and then at the very bottom of the lower selvage you can just see the beginning of new tagging bars. These are the tagging bars that were applied to the lower panes.
On the left, is a single from the left side of an outer pane, as can be seen from the wide selvage tab at the left. The tagging has been shifted strongly to the left, resulting in one tag bar in the selvage, and the other one on the right side of the stamp. This stamp shows the narrower, 14.5 mm spacing between the tagging bars, that is found in the outer columns of the left panes.
The stamp on the right is from the right side of one of the outer panes. There is a clear 8 mm band almost at the centre of the stamp. Then there is a 2 mm gap to the right of it, and then another band. Normally, the band at the right would extend over the perforations of a stamp in the first column of a centre pane, and into the selvage of that pane. Then, the second band starts in the selvage between those panes and extends into the design of a stamp from column 10 of one of the left panes. The shift in the tagging has resulted in both bars appearing on the same stamp.
Here we have a block from one of the centre panes, as evidenced by the narrow selvage at left and bottom. The tagging is unbroken at the bottom, which suggests that this is from the lower centre pane. There is a narrow tagging bar in the selvage, which suggests again, that the tagging is shifted to the left. This block shows the wider spacing of 16 mm between the tagging bars in the horizontal direction.
The last picture below, shows how the degree to which the tagging can be shifted:
- 4 with wide selvage on both sides.
- 4 with narrow selvage on both sides, and
- 4 with wide selvage on one side and narrow on the other.
- Streaky deep yellowish cream dextrose gum, with a semi-gloss sheen, and
- Smooth deep yellowish cream dextrose gum with a semi-gloss sheen.
- One paper has a completely smooth surface, even under magnification. Very tiny indentations are visible in the surface, as though the topmost fibres have been stripped out. The paper also lacks the burnished finish that the dextrose gum tagged stamps have.
- The other paper has a textured surface under magnification, that appears somewhat porous. The horizontal mesh is highly visible when the paper is viewed against strong back-lighting, and also when the stamps are viewed at an angle to the light.
The block on the left is a low fluorescent grey blue colour under UV light, while the single stamp on the right is greyer, being more of a blue grey. Under a loupe, you will see that the ambient fluorescence level of the block on the left is dull fluorescent grey-blue, while the stamp on the left is dull-fluorescent grey. The overall low fluorescent appearance is obtained from different concentrations and intensities of fluorescent fibres that are embedded in the paper:
- The block on the left contains a low density concentration of low fluorescent fibres.
- The single on the right contains a sparse concentration of medium fluorescent fibres.
The picture below shows the different appearance of these two papers more clearly, when the backs are compared:
- A single 3 mm band near the centre of the stamp on medium (high) fluorescent paper.
- A single 3 mm band to the right of the stamp, on medium (high) fluorescent paper.
- A single 3 mm band to the right of the stamp, on low fluorescent paper.
- A single 2 mm band to the right of the stamp, on low fluorescent paper.