Opening Hours
Daily: 10 A.M.–5 P.M.
Closed on Tuesdays
1151 Oxford Road
San Marino, CA 91108
Rare Books
Image not available
Daily: 10 A.M.–5 P.M.
Closed on Tuesdays
1151 Oxford Road
San Marino, CA 91108
Image not available
Rare Books
246492

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
Image not available
Rare Books
228645