3 questionable Lincoln cents

Awesome, thank you!

 

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Also remember that the plated cents ( few solid alloy cents in circulation now) are 100% copper, not 90% and they are much, much more reactive chemically and I am sure the mint knew they would last less time/activity though their own experiments, but deemed the decrease in metal expense and die working would be better than longevity as I think they were hoping the cent would be ceased by 2020. Jim

 

Because both the copper and the zinc plate out on the surfaces giving you Brass of variable composition depending on how much zinc is dissolved in the plating solution. The more zinc the more yellow the color.

So there is no way of knowing what the color of the OP cents actually were when they left the mint and there is no way of knowing what chemicals they came into contact with in circulation, so there is no way to tell what cause the final resulting color.

 

Top drawer!

 

"...since this is not the only pile I've gone through in the last two years; each bag contains around 3,000 cents and I have only a handful of these I've seen and pulled...." "...I think we both have better things to do with our time...."

I'll have to agree.

 

If coin roll hunting thousands of Lincoln cents doesn’t interest you, that’s just fine. It’s not for everyone, but maybe go find a thread that does instead of wasting time posting insulting comments here. Have a great day.