Here's what PVC damage looks like: PCGS rattler Mercury Dime MS66

I’m guessing the corrosion spot on the 1812 LC was considered market acceptable. It otherwise looks nice for a G4. Perhaps it would have gone G6 without the spot. The Classic Head series is hard to find problem free and therefore the TPG’s probably let more things slide.

I looked at the NGC photo and it’s hard to tell but looks like the corrosion was there when the coin was slabbed.

 

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I thought I removed everything from PVC flips a long time ago. I was hunting for something tonight in old box and saw 2 old flips tucked away. I cringed. A 64 and 63 proof dime. The 64 is perfectly fine. The 63.... not so much. The flip had the perfect impression on it. Knowing it was trashed, I experimented with some Conserv, which did make a massive improvement. I should have taken before pics.

 

Same here. Better safe than sorry.

 

I have 4 rolls Wheaties that was stored in PVC Tubes. The reaction, by the time I got them, had produced a black liquid & was still fluid. The reaction shrunk the tubes, like it was exposed to heat. Used needle nose pliars and buck knife to separate one roll. Wiped black liquid from the cents it was on , left the copper black as coal mine at night.

 

One more with PVC.

 

Bummer, found another as I am moving some things into an album. This is a really, really pretty 1883 No Cents nickel. Moved this coin from a flip to a slab many moons ago. But I didnt know about pvc damage back then.

 

The PVC damage to the fields is obvious and typical. I have some coins with similar issues. I know the manufacturers of PVC flips, 2x2s, etc. meant no harm, but so many beautiful coins have been ruined because of ignorance. Nice dime.

 

If I had bought that dime I would not have recognized the damage for what it is. Thanks @C-D-B.

Steve