Various Coin Errors? Brass Penny? Blank Dime, And More!

Hm, I don't know about spray-paint on the penny... You're saying that it's warn off, but the chemicals may have dyed the metal right? Obviously, since the coin is much older than I am, I haven't had it its entire life, so I can't vouch for it's integrity... but it doesn't seem to be changed chemically... Still, I'm not a metallurgical expert.

Huh, I hadn't thought of weighing it... But really, that wouldn't help in any way, except by possibly eliminating the fact that it has merely been melted by a flame. But really, I can tell you right now that is not the case.

The... deformity, sticks out just a little bit further than the Monticello estate would. I can't say for certain, I'm not an expert, but it really doesn't seem to be something stuck to the surface. It just... flows out of the surface very nicely, without any ridge you might expect from something being dripped or melted to it. If that isn't created by welding... I really can't fathom what could have caused it, or what it is. Thanks for the input Metalman.

What about something being smashed into the surface during the dyeing? (not sure if that's the right spelling for minting dye's)Something soft enough to not be pushed out, but hard enough to not take the image on the dye on it? Hm, that wouldn't work.. then the rest of the image would be gone. Is it possible part of the dye broke off and got stuck to the coin? And after almost 30 years of wear and use, it's become what you see now?

Maybe I want it to be an error a little too much, and it's bluring my perspective, but really, I can't personally think of anything that might cause this out of the mint. But then, I don't know enough about what happens inside of it to offer any sound guesses on mistakes. But, since the image is half there, it means it pretty much has to be afterwards, because something in the way would ruin the strike.

Per Wikipedia: Brass is the term used for alloys of Copper & Zinc.
Your 72 cent is in reality a form of Brass. If you polish cents of that composition, you will usually get that effect. Auto polish is good for that. Try Blue Coral. Cents from that year are .950 Copper and .050 Zinc. Possible slight variations due to manufacturing tolerances in the production of metal for the Mint could possibly vary from that noted. No one spectrographs sheet metal used to varify exact proportions. Regardless, Cents of that era ARE Brass. As other elements are added such as Tin, Silicon, etc. the final product becomes known as Bronze. Note thsi why the after WW11 the cents were noted as Bronze since they were made from expended shell casings and no one really knows what that may have been for real.

i agree with Bill on the cent . it is either spray painted or gold plated both will wear like your coin. value? a cent
Gary