| RITTENHOUSE AND COMPY. | USA, MIM SIM | Surveyor's Compass = New Salem Park Museum, Il. | Smart thought this instrument was made by David Rittenhouse, c.1782, basing his opinion on the simplicity of the compass face; Forman felt it was made by Benjamin Rittenhouse and his son, David Rittenhouse 2. | Worcester Township, Pa. | Smart 1; B.R. Forman. | 
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