Opening Hours
Daily: 10 A.M.–5 P.M.
Closed on Tuesdays
1151 Oxford Road
San Marino, CA 91108
Visual Materials
Visual Materials
Daily: 10 A.M.–5 P.M.
Closed on Tuesdays
1151 Oxford Road
San Marino, CA 91108
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
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
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
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.
priJLC_PRG_002318
Visual Materials
Image of a certificate issued to lithographer Louis Prang on April 23, 1884, in Boston, Massachusetts, certifying his admittance as a member of the Massachusetts Charitable Mechanic Association; various symbolic emblems of the association surround the central text, including a muscled arm holding a hammer between balanced scales, Archimedes standing with drafting tools in hand, a beehive, a cornucopia, hooks an pulleys, and the prow of a ship waving a flag for "Massachusetts;" M.C.M.A. seal with motto "Be just and fear not," at bottom center.
priJLC_PRG_002317
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