"Theodore F. Randolph was born in Ohio in 1829 and died in 1898. Randolph's business was listed for the first time in the 1853 Cincinnati, Ohio Directory as mathematical instrument manufacturers. The company listed for the last time in 1941 with Arthur J. Roedel named as proprietor. In 1857 Randolph's surveyor's compass took first premium at the Ohio State Fair. In 1858 he was awarded a medal for his theodolite transit, Y level, Dumpy level, and surveyor's compass at the fair of the Ohio Mechanics' Institute. In 1860 at the United States Agricultural Fair he was awarded silver medals for a theodolite and surveyor's compass. He also received first premium silver medals at the Cincinnati Industrial Expositions 1871 - 1874." Reference: Smart, Charles E. The Makers of Surveying Instruments In America Since 1700 Troy, New York: Regal Art Press. 1962
National Museum of American History - Vernier Compass with Scope
Important instrument maker based in Cincinnati, Ohio:
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