What, no new posts since last year? Well, I'll add a couple cards I recently picked up. Both of these are considered semi-official (SO) cards. The first is from the CANADA 82 stamp show, printed by Ashton-Potter. It shows off the 10 progressive steps in the process used to print the 30¢ Terry Fox stamp. This is listed by the SCCS as SO-27.
And another Ashton-Potter card, SO-162, from Capex 96 with six stamp reproductions. Despite the fact that these are not postally valid, someone "cancelled" them with a variety of different hand stamps from the show.
Both of these cards are seldom seen in the collector's market, so apparently they were not well received.