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Old 10-04-2013, 09:06 PM   #3
Fe26
Senior Member
 
Join Date: May 2010
Location: Sydney, Australia
Posts: 949
Default Re: double paned glass in a 40

The old safety glass was made with a clear Acetate sheet sandwiched between two layers of glass. With time the Acetate yellows around the edges. This was a big improvement over the Plate Glass used in the early 30's.
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