1601 West Evans, Denver, CO 11/10-11/67
The original poster was printed on uncoated index stock and measures approximately 13⅛x 22 5/8
The postcard comes in three varieties, all of which measure approximately 5″ x 7″:
The Type A card has a “place stamp here” reverse.
The Type B card has a bulk rate permit on the back.
The Type C card has a bulk rate permit on the back and was mechanically addressed and sent to people on the Family Dog mailing list.