Reflecting circle, Chas. Hervey Townsend patent

reflecting circle

Reflecting circle, invented and (made by??) Charles Hervey Townshend, of New Haven, CT. Pat. 1/31/1888. Designed for use in surveying oyster bed boundaries. Two references could be viewed simultaneously to establish position of surveyor. Engraved "CHAS. HERVEY TOWNSHEND/ PAT.D. JAN 31, 1888". Includes parts 1946.232.1-7.