[78-L] glass record mystery

[Michael Biel]

The lacquer composition could have more coloring agent in it than most. 
Any indication of the brand of blank?

Mike Biel  mbiel at mbielcom

-------- Original Message --------
Subject: [78-L] glass record mystery
From: Joe Salerno <jsalerno at collector.org.invalid>
Date: Mon, September 05, 2016 1:02 am
To: 78-l <78-l at 78online.com>


Recently I acquired a number of glass based records. Or I think they are

glass. Some say they are glass. They are flat like glass. They weigh 
like glass, sound like glass when you tap them lightly with your 
fingernail, and looking at the edge of the center hole, I don't see 
anything that looks shiny like aluminum. Dates are 1944, which would be 
the right time frame for glass.

But when I attempt to shine a bright flashlight or a red laser thru 
them, they are opaque, even in a very dark room at night.

Is there some reason why a glass based disc would not pass light?
-- 
Joe Salerno
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