1960s Hopf Commander, Fasan Commodore, Isana guitar bass truss rod cover, made in Germany

1970s Hopf prototype guitar tailpiece saitenhalter, made in Germany

1970s Hopf Twist Jupiter 63 guitar bass tailpiece saitenhalter top cover & bottom plate, made in Germany

1960s Hopf Jupiter 63 guitar bass moulded front & back plastic body plates, made in Germany

1960s German Hopf bass guitar pickguard

1960s German Hopf Twisty bass guitar pickguard

1950 - 60s Hopf Spezial archtop guitar pickup tonabnehmer, made in Germany

1960 70er Hopf guitar bass strap buttons gurt halter

1960 70s old Schaller model 114 guitar bass tone volume knob as used by Hopf and others

1960s 70s old Hopf project guitar bass volume tone pot scale plate, made in Germany

1960s Hopf Galaxie guitar wiring harness, made in Germany!

1960s Hopf Explorer Standard guitar neck, made in Germany