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Whereas, I, George P. Helfrish of Boston in the state of Massachusetts

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  • Whereas, Levi Newcomb of Boston, Suffolk County

    Whereas, Levi Newcomb of Boston, Suffolk County

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    Image of a certificate granting one quarter share of letters patent number 364,844 from Levi Newcomb and William H. Lewis to Louis Prang; official seal and signatures below.

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  • United States patent office. Louis Prang, of Boston, Massachusetts. Letters patent no. 104,996, dated July 5, 1870

    United States patent office. Louis Prang, of Boston, Massachusetts. Letters patent no. 104,996, dated July 5, 1870

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    Image of a letters patent certificate issued to lithographer Louis Prang for improvement in library shears, with specification of his invention and detailed descriptions of the various parts of the shears.

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  • Louis Prang. Library shears

    Louis Prang. Library shears

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    Image of a diagram of a pair of library shears for patent number "104996" invented by Louis Prang; signatures of witnesses, inventor, and patent attorneys Munn & Co. below diagram; letters patent certificate issued to lithographer Louis Prang for improvement in library shears affixed to verso.

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  • The United States of America : to all to whom these letters patent shall come

    The United States of America : to all to whom these letters patent shall come

    Visual Materials

    Image of an American bald eagle above the United States Patent Office in Washington, D.C., on a letters patent certificate "No. 55158" issued to lithographer Louis Prang certifying he "invented a new and useful improvement in the manufacture of caustic alkali" dated May 29, 1866; official seal and ribbon at bottom left.

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  • The United States of America : to all to whom these letters patent shall come

    The United States of America : to all to whom these letters patent shall come

    Visual Materials

    Image of a letters patent certificate "No. 104996" issued to lithographer Louis Prang certifying he "invented a new and useful improvement in library shears" dated July 5, 1870; goddess Columbia with American flag and bald eagle at the center of a scene featuring the industrial and agrarian sides of the United States; woman at left cards wool near a spinning wheel with machinery and an industrial city behind her; man at right holds a hand scythe and watches another farmer harvest a field with a horse team and machinery; official seal and ribbon at bottom left.

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  • Louis Prang. Library shears

    Louis Prang. Library shears

    Visual Materials

    Image of a diagram of a pair of library shears for patent number "104996" invented by Louis Prang; signatures of witnesses, inventor, and seal from patent attorneys Munn & Co. below diagram.

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