In a message dated 2/26/2014 10:56:15 P.M. Eastern Standard Time, [log in to unmask] writes:
You are correct - generally copper or sheet iron with galvanized coating. The stamped ornament (egg and dart, lambs tongues, bosses, etc, is zinc. You can sometimes tell if it's galvanized because the galvanic coating will wear and the iron begins to rust. Stamped zinc will not rust.
Yes, I remember that, the little doodads all shiny, the iron around it shot.   Why did they bother stamping in zinc?
On Kitty's cornice (32 E 64th St. all of the ornament, including lions heads and modillions, were of stamped zinc- sometimes using up to a dozen  individual stampings. Check out the WF Norman Co. catalogue (online)
I am astonished, I always assumed it was such a quality-folk building it would all be copper.
 
Dreams die hard.   c

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