This United States event cover features a 5-cent violet airmail postage stamp, Scott #C3, depicting an eagle with outstretched wings over a globe, emphasizing the theme of air mail service. The cover is postmarked from Canton, Ohio, dated November 4, 1930, with a clear circular date stamp and killer bars cancel. The envelope is an official U.S. Post Office Department air mail envelope, marked "VIA AIR MAIL" on the front and with the back flap noting its exclusive use for air mail only.

The cachet on the front is a large circular embossed design related to aviation, featuring a globe and the text "U.S. S. WILLIAMS MEMORIAL AVIATION EXCHANGE CLUB CANTON, OHIO," indicating the event or sponsoring organization connected to the cover. The cover was addressed to V. W. Wyckoff at 4556 Hollywood Blvd., Los Angeles, California. This cover is an excellent collectible for philatelists interested in early U.S. air mail history, aviation-themed event covers, and postal markings from the 1930s. Its clear postmark and distinctive embossed cachet make it a valuable addition for thematic collections focused on aviation and air mail.