Descriptive catalogue 1914 : Frost & Adams Co. importers and dealers in artists' materials, architects', engineers' draughtsmen's supplies, mathematical instruments and pyrography requisites. (1914)
Frost & Adams · Frost & Adams · leaf 565
und number, 20,000. for any setting. It is usedin the same way with pole inside as outside, and by tracing the figurewith pole on the right and on the left of tracer-arm and taking the meanreading, very large areas can be measured very accurately. The exten-sibility of pole-arm and great range of… … 42e2 Precision Rolling PIanimeters of German Silver andBrass; adjustable Tracer-Arm. fully graduated, 8inches long with > inch Telescoping Extension Precewith Testing Rule aud Table of Settings for f. S.Standard and Metric measures; Morocco Case accommodating the Instrument set to any ratio,…
Artists' materials · Drawing instruments · Paint
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