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Brunton Pocket Transit | BRUNTON POCKET TRANSIT - Brunton pocket transit, aluminum housing, quadrantal model, made by Wm. Ainsworth and Sons, Denver, CO, with leather case, Serial # 38741 (est. mfg date 1946) marked NATURAL SINES D. W. BRUNTON’S POCKET TRANSIT TRADE MARK REG. U.S. PAT. OFF. Wm. AINSWORTH & SONS DENVER, COLO; from the estate of a Colorado mining/economic geologist; patented by David W. Brunton of Aspen, CO as patent No. 526,021 and awarded on Sept. 18, 1894. SEE THE BRUNTON PATENT IN THE FOLLOWING PICS | ![]() |
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