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 47
199No. Each. 199. Beam Compass, to fit on any straight edge, with two steel points, pen, pencil, needle points, and micrometer adjust-ment $ 9 00 200. Beam Compass, to fit on any straight edge, with two steel points, pen, pencil and needle points, with attachment on wheels to stand by itself 10 80… … 201. Wheel Attachment, for 199 2 25 For Wooden Bars for Beam Compasses, see under Bars for Beam Compasses. 41
Drawing instruments
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