American horological journal, devoted to practical horology (1869)
Miller, George B · New York, G. B. Miller · leaf 138
red francs, and for anassortment of Ingold fraises from three to fourhundred francs, and that by using the rounding-up cones, by which the same result can be ob-tained, a sum of about fifty francs is sufficient,it cannot be denied that progress has beenmade, and that the introduction of this tool… … purpose, but any other depthing tool may beused with equal satisfaction ; besides this, anappendage is also made, called a cone carrier,which may be used in the place of the T rest ofany ordinary Swiss bow lathe, without any pre-vious preparation. The tool represented in thecut may thus be…
Clocks and watches
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