Observation table regulator

Observation table regulator, signed Grimalde and Johnson

Details

Category:
Time Measurement
Object Number:
1975-342
Materials:
wood (unidentified), paint, metal (unknown), glass and brass (copper, zinc alloy)
Measurements:
overall: 270 mm x 245 mm x 145 mm,
type:
regulator
credit:
Banham, K.