Green o-ring slab insert

EagleEye

Has anyone ever seen a similar slab with a green insert?

coinman420

never saw that before.

jabba

I dont think the older holder's are sealed that well and the o-ring on some slabs turns yellow or green with age.

EagleEye

It doesn't seem to be an environmental factor, as the color is even and not just on the outside. I don't think this type of plastic is permeable. Right?

ColonialCoinUnion

I saw one like that (a different coin) at lot viewing at a recent Heritage auction.

The consensus was that it had turned greenish-gold over time.

cmerlo1

I believe the slabs are supposed to be 'chemically-inert'. If my understanding of 'chemically-inert' is correct, it shouldn't have changed color anyway because they don't react with anything. It matches the label nicely, though...that's a very interesting slab!

Regulated

I have cracked slabs with the green o-ring in them. It is the rubber in the o-ring breaking down, I think (the ones I have handled have always been sticky to the touch)...

mcmxi

I had one of those recently. Everyone here said it was the ring turning colors. I had a yellow one too. Come to think of it it was a 1921 as well!

lordmarcovan

Never seen that, either, though my guess would also have been yellowing due to oxidation or aging of some sort.

SeattleSlammer

Purdy! I think PCGS should offer color choices for the O-ring.....I'll take neon pink please!

sweetwilliet

I have seen them green or a darker yellow, all in older holders, they were made that way.

savoyspecial

they do turn with time to a yucky green color

greg

CoinHusker

Oh great, another o-ring doctor thread.