Vintage raffle ticket from a Food Show in Cleveland at the Public Auditorium, offering the buyer a chance to win two five piece sets of Revere Ware, sponsored by John F. Jelke & Co (producer of Oleomargarine).  Revere Ware was first introduced in 1939 at the Chicago Housewares Exposition.  This raffle ticket is probably from around March 10, 1941 or March 10, 1947.