Popular Science Magazine September 1947 - Sandhogs' Toughest Job

1947 Popular Science Magazine - May -75th Anniversary Issue

POPULAR SCIENCE MONTHLY MAGAZINE APRIL 1947 VINTAGE TECHNOLOGY INVENTIONS NEWS

Popular Science Magazine December 1947 - Diving Balloon

Vintage Popular Mechanics & Science Magazines Boat/Engineering Lot 1947-1958

Popular Science Magazine May 1947

Popular Science Magazine June 1947 The War Against Hail -bagged

Popular Science Monthly Magazine March 1947 Going Up for Keeps space theme