The Artist Series Box Set No. 31-40 includes sheets from the following artists:
Helen Hancocks, Alyn Smith, James Terman, Maggiemagoo Designs, Michael Wertz, Michael Shea, Rankin Renwick, Deth P. Sun, Lydia Makepeace, Claire Colin
Commemorative poster stamps are artifacts from another time. These miniature bits of advertising were popular in Europe at the turn of the century. Their appeal, utility, and popularity quickly grew, becoming ubiquitous in the United States in the 1920s.