Whitney, Thomas (fl. 1798-1821), Philadelphia, Pa. 

 Pocket Compass of brass encased in brassbound mahogany box with 

 separate carrying case. Paper dial is inscribed "T. Whitney/ 

 Phil^" Carried by Capt. William Clark on the Lewis and Clark 

 Expedition to the Pacific Coast in 1803-1806. 



USNM 38366. Figure 85. 



Figure 85. — Pocket compass 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. 



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