Boston   TE-model input cup, with angled screwholes, 3/8" 32 thread, 22mm diameter, chrome

Boston   TE-model input cup, with angled screwholes, 3/8" 32 thread, 22mm diameter, nickel

Boston   TE-model input cup, with angled screwholes, 3/8" 32 thread, 22mm diameter, gold

Boston   TE-model input cup, with angled screwholes, 3/8" 32 thread, 22mm diameter, unplated