The 4c Seaway Lock Stamp of the 1967-1973 Centennial Issue Part One
Today, I start examining the printings of one of the more complicated low value denominations in the series: the 4 cent carmine, which depicted a lock in the St. Lawrence Seaway, in Quebec. In addition to sheet stamps and coils, this stamp was also issued in three different booklets, as well as in the cello-paq miniature panes of 25, that sold for $1 each. The sheet stamps came with two different basic types of Winnipeg tagging, as well as general Ottawa tagging. It is a complex stamp, and three separate posts will be needed to deal with all the complexity. Today's post will be the first of these, and will examine all of the untagged sheet stamps.
Unitrade lists four varieties of paper for the stamps with dextrose gum, that were issued between February 8, 1967 and May 1972, when the stamps with PVA gum appeared. Two paper varieties are listed for the precancelled stamps as well. Only a single listing is given to the PVA gum untagged stamps, though as we shall see, there are sever…
Unitrade lists four varieties of paper for the stamps with dextrose gum, that were issued between February 8, 1967 and May 1972, when the stamps with PVA gum appeared. Two paper varieties are listed for the precancelled stamps as well. Only a single listing is given to the PVA gum untagged stamps, though as we shall see, there are sever…