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Signature	Maker	Instruments	Comments	Location	References
TOLLES, ROBERT B.	USA, 1822-83, MIM OIM PHIM	Lenses, 1873 = Army Medical Museum; Binocular Eyepiece = USNM.	apprenticed to Charles A. Spencer, 1843-51; collaborated with him, 1851-58; started his own business in Canastota in 1858; moved to Boston in 1867 and organized the Boston Optical Works, became its supervisor and in 1871 its owner; patented a binocular eyepiece.	Canastota, N.Y. (1822-67); Boston, Mass. (1867-83).	USNM.
TOLLES, ROBERT B.	USA, 1822-83, MIM OIM PHIM	Lenses, 1873 = Army Medical Museum; Binocular Eyepiece = USNM.	apprenticed to Charles A. Spencer, 1843-51; collaborated with him, 1851-58; started his own business in Canastota in 1858; moved to Boston in 1867 and organized the Boston Optical Works, became its supervisor and in 1871 its owner; patented a binocular eyepiece.	Canastota, N.Y. (1822-67); Boston, Mass. (1867-83).	USNM.

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