8613 - Principles and Explanations of Timekeepers by Harrison, Arnold and Earnshaw


Reprint celebrating the 125th anniversary of the BHI. Introduction & Technical Appraisal, 22 pages. The principles of Mr. Harrison's Time-Keeper, with plates of the same, Ed. 1767, 31 pages. Explanations of Time-Keepers, constructed by Mr. Thomas Earnshaw and the late Mr. John Arnold, Ed. 1806, 33 pages and 3 plates. Explanation of Time-keepers, constructed by Mr. Arnold, Ed. 1805, 26 pages, 3 plates.. Very nice binding.


Edition : 1984

Langue : anglais

CHF 250.00