35mm. four way synchroniser with three magnetic heads 35mm. four way synchroniser with three magnetic heads
Bolex Synchromat M8 tape synchroniser with instruction booklet. Bolex Synchromat M8 tape synchroniser with instruction booklet
Georges Mendes patent. Synchroniser for film projector (cable link) and gramophone (electical connection). For Walturdaw Cinematophone sound system. No 574. Mendel Synchroniser
