Difference in 2009 silver and clad PROOF set Lincoln cents

LanLord

Anyone else see a huge difference in how the Lincoln cents in 2009 silver and clad PROOF sets are toning (or not toning)?

I have 5 of each sets, all the clad sets have highly toned cents. Toned to the point of turning silver in some cases. Where they aren't silver, they are very red.
The silver set cents are not toned at all, in any of the sets.

The material used to hold the coins is pretty much the same, but the colour of the holder is different. I'm not sure why that would cause a difference, but it appears something does.

I've kept the sets together in the same area, I can't point to anything environmental making a difference (other than the holder material).


Anyone else notice this?

zippcity

I also have 5 sets of each, with 3 silver sets and 3 proof sets with toning. All kept together in the same environment.

BillJones

I recently sold off all of my Clad sets, starting with 2009. I'm keeping the silver sets, and the State Quarter sets. I'm just tired of losing money on them every year, and at least with the silver sets, you have some silver, which as some value.

And yes the cents in my Clad sets were toning. All of the 2009 Proof cents, which are made out of bronze, not copper plated zinc, seem to be prone to toning despite good preservation efforts. It's probably due to something the mint used to rinse the planchets before the coins were struck.

bronco2078

Some of the cents were toning very attractively the last time I looked at them. I was wondering though if it was progressing so rapidly whether they would wind up looking awful.

BillJones

<< <i>Some of the cents were toning very attractively the last time I looked at them. I was wondering though if it was progressing so rapidly whether they would wind up looking awful. >>



The trouble is for most collectors modern Proof cents should be RED. Anything else is considered to be "a bad penny Proof."