Technical supply co., Scranton. [from old catalog] · Scranton, Pa., Technical supply co · leaf 355
f^ … 4035 4035. Sextant of gun metal, light but very strong, 8-inch radius, 120 degrees, graduated on silver to 10 minutes, vernier reading to10 seconds; two astronomical telescopes magnifying six and tentimes, one terrestrial telescope, seven neutral glasses and twomirrors. Instrument complete, in…
Engineering instruments · Drawing instruments
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