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 168
PEARWOOD AND CARDBOARD RAILROAD CURVES. … No. 1610. 1611. 1612. 1613. 1614. 1615. 1610 Per Set. Pearwood Railroad Curves, 10 in set, 12 to 120 inch radius, 12, 24, 36, 48, 60, 72, 84, 96, 108 and 120 inch, in box $3 50 Pearwood Railroad Curves, 17 inset, 12 to 50 inch radius,12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48, 51, 54, 57…
Drawing instruments
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