Technical supply co., Scranton. [from old catalog] · Scranton, Pa., Technical supply co · leaf 177
FLAT WHITE-EDGE SCALES IN SETS … 1621 Nos. 1620-1622 have the same scale on both edges; one edge is divided and figured to readfrom left to right, and the other from right to left 1620. Set of four White-Edge Scales 12-inch. Divided i, i, i, 1 inch to the foot per set, $ 6.50 1621. Set of eight White-Edge Scales, 12-inch. Divided…
Engineering instruments · Drawing instruments
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