Shown from a local estate are 4 safety posters from the United States Air Force and dated 1952, same time period as the Korean War. Each measures 28" by 20" and is marked "Government Printing Office" and "Series No. 5, Navaer". T are a few minor tears on a few edges but seem to have been stored from the 1950's. ***These are not reproductions.*** They will be shipped rolled. Thanks for looking.The free listing tool. List your items fast and easy and manage your active items.