The Commemorative Issues of 1971 - Part Two
This week's post completes my examination of the last six commemorative issues from 1971. This is the last year to include stamps with dextrine gum, and the formula for PVA gum had more or less been perfected by both the BABN and CBN by the end of the year, after several months of experimentation.
The use of chalk-surfaced paper continued and by the end of the year, only 2 stamps were issued on non-chalky paper. BABN introduced, with the last stamp of 1971, the Pierre Laporte stamp, a ribbed, chalk-surfaced paper, that continued to be used to produce the first printings of some of the 1972-78 Landscape definitives.
Fluorescence turns out to be a far more complicated topic on these issues than it has been for any other period in quite a long time. The main reason is that the fluorescence on the front and the back of the stamps varies, due to the chalk surfacing on the front of the stamps. Most issues show at least 3 or 4 varieties of fluorescence on the front, and almost as many o…
The use of chalk-surfaced paper continued and by the end of the year, only 2 stamps were issued on non-chalky paper. BABN introduced, with the last stamp of 1971, the Pierre Laporte stamp, a ribbed, chalk-surfaced paper, that continued to be used to produce the first printings of some of the 1972-78 Landscape definitives.
Fluorescence turns out to be a far more complicated topic on these issues than it has been for any other period in quite a long time. The main reason is that the fluorescence on the front and the back of the stamps varies, due to the chalk surfacing on the front of the stamps. Most issues show at least 3 or 4 varieties of fluorescence on the front, and almost as many o…
