File:Balance Wheel in Early Watch Berthoud.png

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Balance_Wheel_in_Early_Watch_Berthoud.png ‎(464 × 366 pixels, file size: 37 KB, MIME type: image/png)

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Summary

Description Illustration of a balance wheel in an early watch, by Ferdinand Berthoud. Alterations: Detail cropped from drawing showing entire watch disassembled.
Date published 1805
Source Downloaded from Ferdinand Berthoud (1805), L'art de Conduire et de Regler les Pundules et les Montres, J.M. Eberhardt, Paris, Plate 2e on Google Books
Author Ferdinand Berthoud
Permission
(Reusing this file)		 Public domain: the author died in 1807.

Licensing

Public domain

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checksum

fedc3a4b95b928759b5b3768a16f67f8b481b1c0

determination method or standard: SHA-1

data size

37,388 byte

height

366 pixel

width

464 pixel

File history

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Date/TimeThumbnailDimensionsUserComment
current13:14, 6 July 2007Thumbnail for version as of 13:14, 6 July 2007464 × 366 (37 KB)wikimediacommons>Chetvorno{{Information |Description=Illustration of a balance wheel in an early watch, by a master watchmaker of the 19th century. From Ferdinand Berthoud (1811), ''L'art de Conduire et de Regler les Pundules et les Montres'' |Source=http://books.google.com/book

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