Catalogue. A.H. Abbott & co., manufacturers and importers of mathematical and surveying instruments and drawing materials of every description .. (1896)
Abbott, A. H., & co., Chicago. [from old catalog] · [Chicago] · leaf 104
PANTOGRAPHS. … No. 710. 711.712. 710 Each.Pantograph, of square brass tubes, for reducing and enlarg-ing engravings, plans, drawings, etc., of the best construc-tion, and with all the latest improvements, in a strongwooden case, arms 24 inches long $67 00 Same as No. 710, arms 28 inches long 81 50 710, 33 97 00
Drawing instruments
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