Interesting set of 4 Roycroft Craft Series envelopes; I think they are called first day covers. They have the Roycroft orb and cross symbol as part of the postmark, dated 10 March 1984 & 9 March 1985. Put out by the East Aurora Philatelic (stamp) Society, with images of a Roycroft Morris-style chair, a bookcase, a Little Journeys book, and The Roycrofters magazine. An unusual Roycroft collectible in near fine condition. The text image is a clip of a little more info I found online.