62-30 Extra weight used for sinking circular caisson
name: label: Collection Creator
content: Missionary Catechists of Divine Providence.
label: Collection Creator
content: Massachusetts Institute of Technology (MIT) Civil Engineering Department
label: Collection Creator
content: Underwood and Underwood
setName: label: See more items in
content: Division of Work and Industry Lantern Slide Collection
label: See more items in
content: Division of Work and Industry Lantern Slide Collection / Series 1: Engineering / 1.8: Bridges -- Suspension / 1.8.5: Philadelphia - Camden Suspension Bridge [Benjamin Franklin Bridge originally named the Delaware River Bridge]
unitdate: label: Date
content: 1923-07-05
container: label: Container
content: Box 33, Item 58
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
objectType: label: Type
content: Archival materials
label: Type
content: Photographs