Canada #567ai, 569ai 1973 Algonkian Indians Issue, Two Upper Right Inscription Blocks, On The Scarce So-Called Transparent HB Paper and the F/HB Papers, Both VFNH

Two VFNH upper right inscription blocks printed on the scarcer paper types: the F/HB paper on the artifacts pair and the so-called "transparent HB" paper on the thunderbird pair. Note that this paper is no truly hibrite, but a very bright high fluorescent paper. However it looks HB compared to the other papers that this stamp comes printed on.

Both these papers are much scarcer than the Unitrade price would indicate. In my stock of some 15 sheets or so of each value, I only have had 1 or 2 sheets of each of this paper type, and many dozens of plate blocks included only a handful on this paper as well.

Unitrade cat. for both blocks is $35.00. These blocks grade 80.