Manhole cover and gutter inlet now used by the City of Chicago. Note the knob surface, the bad fit of the blocks around the frame and the open hole for the gutter inlet
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 / 1.17: Tunneling
unitdate: label: Date
content: 1910-11-10
container: label: Container
content: Box 76, Item 40
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
objectType: label: Type
content: Archival materials
label: Type
content: Photographs