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 149
1026 A-B 1027 A-B No. Each. 102 6 A. Linen Pro vers, brass frame, M inch field $0 30 1026B. y^y% inch field 50 1027 A. Magnifier, on 3 legs, 1% inch brass frame, screw adjust-ment for focus 60 1027B. Magnifier, on 3 legs, 2 inch brass frame, screw adjust-ment for focus 1 00 POCKET MAGNIFYING…
Drawing instruments
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