Postcard version of BG-74: Jefferson Airplane and Grateful Dead at the O'Keefe Center Toronto Canada July 31 through August 5, 1967. According to Eric King's Guide, this is a 1988 pirated printing produced by copying the program book cover of the concerts. Printed in Belfast, Northern Ireland, United Kingdom by Metro Music. Although it is an unauthorized printing, it is nevertheless collectible in its own right. 6 x 4 inches. Mint condition.