Gurley Civil Engineers' and Surveyors' Instruments 1896 (1896)
W. and L. E. Gurley · leaf 64
WwW. & L. E. GURLEY, TROY, N. Y. … PRISMATIC COMPASSES AND SEXTANTS. No. 3225. ‘ No. 3227. No, PRICE. 3225,—Prismatie Azimuth Compass, 2% inches diameter, hinged cover, floating dial with stop, folding prism... 6 +--+ e+e etter eyes te $14 00 227.—Prismatic Azimuth Compass, 3 inches diameter, with cover, floating dial with stop,…