1943 Ad WWII Linde Air Sapphire Furnace War Production - ORIGINAL WWII ZMT1 There is a small crease

There is a small crease in the top margin of the second page

Major Oswald Ames

general manger

Chicago University

1943 Ad WWII Linde Air Sapphire Furnace War Production - ORIGINAL WWII ZMT1 There is a small creaseThis is an original 1943 color print ad from The Linde Air Products Company, a unit of Union Carbide and Carbon Corporation of New York. The ad shows a sapphire being made in a specially designed furnace sapphire jewels being necessary for the making of bearings for the precision instruments used in battleships, airplanes, and bombers. CONDITION This 68+ year old Item is rated Near Mint Very Fine. No aging. No creases. No surface rub. No tears. No