Old clocks and watches & their makers, being an historical and descriptive account of the different styles of clocks and watches of the past, in England and abroad, to which is added a list of ten thousand makers (1904)
Britten, F. J. (Frederick James), 1843-1913 · London, B. T. Batsford · leaf 150
Fig. 135. Fig. 136. contain the mainsprings ; one of the mainsprings broken into manypieces is visible in the engraving (Fig. 133). The case is divided inthe centre horizontally and fastened with a hooked catch ; it openson a hinged joint exposing the movement, which occupies the wholeof the lower…
Clocks and watches · Clock and watch makers
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