Timers, Waltham WPB 541 Records (Also Longines): Tables on Timers showing factors involved and similar table for Imported Timers (Longines Wittnauer Watch Co.), 1944 and 1945.
name: label: Collection Creator
content: United States. War Production Board.
setName: label: See more items in
content: War Production Board Records
container: label: Container
content: Box 1, Folder 7
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
objectType: label: Type
content: Archival materials