A protractor engraved "Made by the E. Howard Watch & Clock Company, Boston," and either retailed by, or made for A. C. Both C.E. [civil engineer?], of Portland Maine. It also bears a patent date of November 20, 1888.
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Howard Products
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A protractor engraved "Made by the E. Howard Watch & Clock Company, Boston," and either retailed by, or made for A. C. Both C.E. [civil engineer?], of Portland Maine. It also bears a patent date of November 20, 1888.
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