American horological journal, devoted to practical horology (1869)
Miller, George B · New York, G. B. Miller · leaf 207
198 AMERICAN HOROLOGICAL JOUENAL. … over tlie two wheels, aBd it is easy to findthat by the same quantity the breadth of themain-spring must be restrained. Frr, 11 45. The stop-work with the cross of Malta(Fig. 11) is the most inuse for watch-work, anddeserves this preference.It is too well known torequire a description. Itis true…
Clocks and watches
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