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Whereas, Levi Newcomb of Boston, Suffolk County



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

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

    Visual Materials

    Image of the United States Patent Office in Washington, D.C., at the top of a letters patent certificate transferring letters patent for "improvement in plates or dishes" from George P. Helfrish to lithographer Louis Prang; seal with witness signatures below.

    priJLC_PRG_002321

  • 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 patent attorneys Munn & Co. below diagram; letters patent certificate issued to lithographer Louis Prang for improvement in library shears affixed to verso.

    priJLC_PRG_004360

  • 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.

    priJLC_PRG_002319

  • 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.

    priJLC_PRG_002325

  • 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

    Visual Materials

    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.

    priJLC_PRG_002320

  • In dem im hohen Alter von 85 Jahren in Los Angeles verstorbenen aus Breslau gebürtigen Louis Prang

    In dem im hohen Alter von 85 Jahren in Los Angeles verstorbenen aus Breslau gebürtigen Louis Prang

    Visual Materials

    Image of a certificate issued October 5, 1909, by a German association ("Zentral Verbandes") in Boston, Massachusetts, expressing their mourning over the death of lithographer Louis Prang, who was born in Breslau (now Wrocław, Poland); five signatures at bottom right.

    priJLC_PRG_002326