McAlester, Cassada Clothing, May 1912 calendar (Oklahoma, USA)
Cassada actually lives on as a clothing brand name, online at least, though the McAlester store itself is long gone. Its memory survives in this brilliant, ancient ad card whose calendar is unfortunately positioned behind a field of flowers. Mailed in May of 1912 with stamp and complete postmark, this is about as good as advertising postcards get. Grade: 1