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 97
FLAT IVORY SCALES. Machine Divided. U. S. Standard. … 571 No. * Each. 570. Flat Ivory Scale, 6 inch, divided %, U, %, 1 inch to the foot, $2 00 571. 12 V^y^ViA 3 00 572. « 12 M •« %,%A%>% 3 00 IVORY CHAIN SCALES. 573. Flat Ivory Chain Scale, 6 inch, div. lOx 50 parts to the inch, 2 00 •. « « 2 00 ♦ 2 00 2 50 3 003 003 00 « 3 75 574. « ti it 6 ii ii…
Drawing instruments
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