2001 D Lincoln Memorial Cent Mint Error - Broadstruck With Indent

I like the look of that one, but worry what zinc rot will do to it

Enjoy that one a lot!

Very nice coin! I like the split plating in the columns and flow trails to the outside of the letters on the reverse. It gives an idea of how much movement can occur when the retaining collar is missing. I wonder how much heat is generated during a normal strike and would guess that it's more on a broad strike because of the extra movement. Has anyone ever heard any stats about the change in temperature of the planchets during the strike?

I guess I've been lucky in that none of the hundreds of coins with exposed zinc cores, and even a few totally unplated zinc cents and planchets, but they have ever shown any sign of corrosion. I've found coins with zinc rot, but even the few of those I've kept show no signs of progression. I keep my coins in regular cardboard 2X2s and store them on a shelf, so there's nothing special there.

I have had a few coins tone while in my collection, but they were slabbed coins. It makes me wonder if the coins we see with major rot come from fountains, junked car cup holders, ground finds and maybe garage chemical experiments.