Mark II coding sheets (1) Problem Sheet PRNC-NPG-68 (Rev. 12-49) Navy-DPPO PRNC, WASH., D.C. (4 copies) could do 30 lines of coding (2) an earlier version of the coding sheet (1 copy) could do 60 lines of coding
name: label: Collection Creator
content: Hopper, Grace Murray, 1906-1992
setName: label: See more items in
content: Grace Murray Hopper Collection
label: See more items in
content: Grace Murray Hopper Collection / Series 1: Technical Documents
container: label: Container
content: Box 2, Folder 2
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
objectType: label: Type
content: Archival materials