Model of the dead-beat escapement as invented by George Graham
- maker:
- George Graham
Model of the dead-beat escapement as invented by George Graham. (Ex. B.C.H. Exhib., No.11)
Details
- Category:
- Time Measurement
- Object Number:
- 1952-341
- Materials:
- timer, regulating, equilibrium and reproduction
- type:
- deadbeat escapement and model
- credit:
- Mr. and Mrs. Charles Hobson