Horological Journal [1984-1986] - The official Organ of the British Horological Institute, :: Number of documents found: 4


(8095) Compensation of Pendulums

(8128) The Harrison grasshopper escapement

(8137) The application of resonance to accurate timekeeping
    Author: Curran, Sir Samuel F. :: Year Vol (No) Month (or Chapter/Auction item): 1986 dec :: Pages: 10-14
    Comments and/or Abstract >

(8056) The Harrison Grasshopper Escapement
    Author: James, Kenneth :: Year Vol (No) Month (or Chapter/Auction item): 1985 jan feb errors jun :: Pages: 25-28, 9-13, 26
    Comments and/or Abstract >