Morphy's July 15-16 Automobilia, Petroliana & Soda Advertising Auction Is Loaded With Nearly 1,300 Lots Of Rare And Desirable Collectibles

Featured: 1940s Harbor Petroleum Products porcelain sign with seaplane graphics; 1939 Harley-Davidson EL Knucklehead motorcycle; 1947 Indian Chief Model 347B bike; rare petroliana signs DENVER, Pa., June 15, 2026 /PRNewswire/ -- An exceptionally clean example of a 1940s Harbor Petroleum...

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