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TARNISHED & POLISHED COPPER PENNIES<br />
(Variations Available)<br />
Copper Reacts With Hydrogen Sulfide In Atmosphere<br />
Copper reacts with hydrogen sulfide in atmosphere to form thin coating of cuprous sulfide on surface.

Fphoto-44139712F-2PS.jpg

TARNISHED & POLISHED COPPER PENNIES
(Variations Available)
Copper Reacts With Hydrogen Sulfide In Atmosphere
Copper reacts with hydrogen sulfide in atmosphere to form thin coating of cuprous sulfide on surface.

Copyright:© 1997 Paul Silverman - Fundamental Photographs

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