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 138
982A.No. Each. 98 2 A, Engineers Transit, two verniers to limb, 5-inch needle,but with 6-inch vertical arc on silver, with vernier movedby tangent screw and reading to 30 seconds, level ontelescope, gradienter combined with clamp and tangent.Instrument in box, with tripod, complete $198 00 LIGHT… … if* « a <u rt CO U 3 cr 5 S £ o-cJS — U QO B i N|s a 2-t! .e rt-G CJg 4) b~£H:S O ~ ~ ■ D > J) o i- i- a) u-v-. ♦j ~jz W — 3 ™~ 5T3 5g g cu £ a, c <u rt ~ c^!> i. * « 3.2.2 > ~ C a> a 1) > V b= h.3 « ~,rt u « > C M<U s«-o 2 ^ ♦.•a fcc--o*j rt be3 « m Vj- rt cu en ns…
Drawing instruments
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