Hey guys, have you ever seen a penny this color before?..If so, what causes it to be this gold color.
I read some classroom science experiments are done to change the color of copper. They use different chemicals on the surface then use heat to create the colors. They can also plate the copper cents.
If my memory hasn't gone completely bananas, I think I remember duplicating this color about 60 years ago using a pencil eraser. Yes, @paddyman98 , it was a little before your time. ~ Chris
Like @paddyman98 said. Fun with chemistry https://www.sciencecompany.com/Turn-Copper-Pennies-Into-Silver-and-Gold-Pennies.aspx
I also have one of that type of penny and have been searching for an answer. Did you ever get a response?
They're just brass. Science experiments. People with too much time on their hands. Who the hell knows why they do this?
