Gretsch-GEAR ► Archtop Acoustics ► 300 Synchromatic None Can you help with additional information on this model? Let us know. 300 Synchromatic Specs Filed under Archtop Acoustics Eras The jazz years: 1930s-1953 First registered year 1940 Last registered year None 300 Synchromatic examples 1940: 323 Sign in to add your 300 Synchromatic