This card has a Scott # 728 stamp with a first-day cancellation. The artist was George W Linn, who is best known for publishing Linn’s Stamp News - the world's largest stamp publication. The pre-event slogan cancellation on this card lists the dates of the fair as June 1 - November 1, 1933. This is an error. The Exposition was open from May 27 to November 12, 1933. Another thing I think is great about the card is that it appeals to several different areas of collecting: postcards, stamps, expositions, postmarks, cachet artists, FDC, postal slogans, and errors, just to name a few.
