Pointer for Smoked-Paper Recording Drum (kymograph)
Pointer for smoked-paper recording drum (kymograph), probably by C.F. Palmer, London, 1920-1960.
Bag of boss heads, time marker, lever, rackwork
Pointer for smoked-paper recording drum (kymograph), probably by C.F. Palmer, London, 1920-1960.
Kymograph recording lever, from bag of boss heads, time marker, lever, rackwork, from Physiological Society, London, United Kingdom, 1920-1970
Kymograph accessory, from bag of boss heads, time marker, lever, rackwork, from Physiological Society, London, United Kingdom, 1920-1970
44 accessories for smoked-paper recording drum (kymograph), including boss heads, time marker, lever, rackwork, accessories for kymograph, from Physiological Society, London, United Kingdom, 1920-1970