Jost Bürgi Library Search for 'an:7082'

Practical lessons on the lever escapement : its tests, errors, their detection and correction /

By Wilkinson, T. J. | Wilkinson, Thomas Jessop,.
Philadelphia, Penna. : Technical Publishing Company, 1916 .
1 preliminary leaf, 241, xvi pages : , "A part of this volume recently appeared in the columns of the Jewelers' circular."--Introduction. | "To the watchmaker": 1 leaf laid inches. 20 cm.

The escapement and train of American watches; a practical and encyclopedic treatise and text book,

By Wilkinson, T. J. | Wilkinson, Thomas Jessop,.
Philadelphia, Penna., Keystone Pub. Company 1928 .
2 preliminary leaves, 378 pages , Part II was published, 1916, under title: Practical lessons on the lever escapement, its tests, errors, their detection and correction. 24 cm.