Avalon Ballroom 9/13-15/68
The original poster was printed on uncoated index stock and measures approximately 14″ x 19⅞″.
The postcard comes in three types:
The Type A card has a “place stamp here” reverse and measures approximately 4″ x 6″.
The Type B card is a double card of FD-137 and 138. This card has a bulk rate permit and measures approximately 6″ x 9″.
The Type C card is the same as the Type B and was mechanically addressed and mailed to people on the Family Dog mailing list.