Rare Books
Proportions of pins used in bridges
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
606039

Visual Materials
Large jack used for removing pins when changing buckets. When forcing out 1 pin in particular, the full capacity of the jack (200 tons) was necessary.
photCL SCE 02 - 28491
Image not available
Rare Books
720748:149
Image not available
Rare Books
720748:184