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Signature	Maker	Instruments	Comments	Location	References
KNOX AND SHAIN 1	USA, fl.1855-76, MIM SIM	Surveying Vernier Compass = P.C.; Transits = U. of North Dakota, D.(1983).	Joseph Knox and Charles J. Shain; also made levels.	461/2 Walnut Street (1855); 716 Chestnut Street (1856-76); both in Philadelphia, Pa.	Smart 1; Coffeen C; RSW.
KNOX AND SHAIN 1	USA, fl.1855-76, MIM SIM	Surveying Vernier Compass = P.C.; Transits = U. of North Dakota, D.(1983).	Joseph Knox and Charles J. Shain; also made levels.	461/2 Walnut Street (1855); 716 Chestnut Street (1856-76); both in Philadelphia, Pa.	Smart 1; Coffeen C; RSW.

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