John Harrison and his timekeepers.
Gould, R.T.,(Lieut-Commander) — 1958
Author Gould, R.T.,(Lieut-Commander)
Date 1958
Publisher The Mariner’s Mirror, 21.2: 1-22.
Location Reprint MM
Geographic UK
Second Navigation
Chrono 18Cent
Shipwreck Databases
Western Australian Museum