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Catalogue and price list of Mackey print paoer co. (1897)
Mackey print paper co., Pittsburg, Pa. [from old catalog] · [Pittsburgh?] · leaf 156
24, 27, 30, 33, 36, 39, 42, 48, 54, 60, 66, 72, 78, 84, 90, 100, 110, 120, 130, 140, 160, 180, 200 inches radius 12.00 2020. One set of 46 Curves, viz.; 3, 4, 5, 6, 7, 8, 9, 10,11, 12, 13, 14, 15, 16, 17,18, 19, 20, 21, 24, 27, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80,85,90, 95, 100, 110,… … 2022 100-FOOT SCALE. 2022. Set of 41 Hard Rubber Railroad Curves, with Tangent, marked in de-grees and inches. Made in Hard Rubber only. 0° .30/=114.59 in. 3° .30=16.37 in. 6° .15=9.17 in. 9° =6.37 in. 1° = 57.30 « 3° .45=15.28 « 6° .30/=8.82 « 9° .15/=6.20 u 1° .15= 45.84 u 4° =14.33 « 6° .45…Drawing instruments
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