From 1973 to about 1986 I was quite active in the Upstate New York Post Card Club. In 1974 the club decided to have an annual post card show. I was willing to produce the advertising cards on my small printing press for the first five shows. 

    The first advertising post card was on the reverse of either my cards #401, 401X, 402, 403 or 404. The sample that I have is printed on card 402, so I know that this imprint was definitely on that card.

    The cards are 3½" x 5½".
    500 cards were imprinted in total.
 It might have been 100 of each of the five designs mentioned above.