Lead in glass helps for clarity - ŒLead Crystal¹.
-- 
Jim Hicks
Quality Restoration Works, LLC
917-575-8545



From: [log in to unmask]
Reply-To: The listserv where the buildings do the talking
<[log in to unmask]>
Date: Mon, 1 Mar 2010 18:43:06 EST
To: [log in to unmask]
Subject: [BP] subway tile

Refresh my memory - this was a thread a decade ago and I cannot find it in
the archives.   Why was the typical tile in the 1910s was the glassy,
translucent stuff you see in the subway and bathrooms, and later tile - post
1940? - is more opaque, ceramic-y, not so translucent?
 
Something about lead, as I recall.   c

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