Canada 1009-1010, 1012-1015 32c Multicoloured Various Subjects, 1984 50th Anniversary of Yellowknife - St. Lawrence Seaway Issues, 10 VF Canada Post Official FDC's DF and LF Cream Envelopes

10 VF canada post official FDC's of the 32c multicoloured Various Subjects from the 1984 50th Anniversary of Yellowknife - St. Lawrence Seaway Issues DF and LF cream envelopes. The DF envelopes appear to be the standard ones for these issues, with LF being an anomaly. The fluorescence of the envelopes is an important characteristic that has been ignored by all the catalogues. Why does it matter? Because the envelope is an integral component of the FDC in the same way that a cover would be to a complete booklet, or the cardboard insert would be to a pack of plate blocks. The expectation, and general observation would be that Canada Post would utilize one type of envelope for a particular issue, so that if a different one from the standard type is found, then there is a good chance that it will be scarce, and is therefore, in our opinion collectible. This lot includes three different cachets for the Red Cross issue and also includes the joint US-Canada cover for the St. Lawrence Seaway issue.

Unitrade values this at $10.9.