Early American Scientific Instruments and Their Makers - LightNovelsOnl.com
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Carried by Capt. William Clark on the Lewis and Clark Expedition to the Pacific Coast in 1803-1806.
USNM 38366. FIGURE 85.
[Ill.u.s.tration: Figure 85.--Pocket compa.s.s made and signed by Thomas Whitney of Philadelphia. With original carrying case. Carried by Capt.
William Clark on the Lewis and Clark expedition to the Pacific Coast, 1803-1806. USNM 38366.]
