SLIGHTLY DISTURBING SLAB THREAD

boyhowdy

I used to keep my slabbed Barber dimes in a canvas bank bag in my safe deposit box at the bank.
For a while I only bought blast white uncs. and picked up a nice '11-S in 65 from the other
side of the street. Next bank trip (3 months later) the '11-S had started to develop a sliver
of honey-gold around the rim. I decided I liked the change.

Anyone else observe slabbed coins toning in a bank bag?

Steve

Placid

I had some ngc graded proofs tone on me not from a bank bag though. It is something to do with the label/holder on the older ngc slabs.
Were you coins in the older ngc slabs by chance?

wingedliberty

It also has to do with the climate of where you live. Alot of banks claim to air condition their vault area, but thats a bunch of bologna.
I live in Florida, I use silica gel and other items in my safe deposit boxes to minimize it. No slab is 100% airtight. Its impossible. I recommend the NGC amber 20 count slab boxes and also Intercept Shield products. Do not use sulfer based cardboard 2x2's, Use Kointainer inert 2x2 flips instead. I hope its helpful.

Brian

boyhowdy

This was a newer NGC slab.

As soon as I can figure out how to post pix from my hard drive I'll put it up.

Steve

jcping

My 1909-D barber dime was bought as blast white in an ANACS holder. About six month later, its rim turned into gold which enhanced the coin appealing a lot. Four years later, the entire coin turned into black. These are all due to improperly dipped the coin

Steve27

The canvas bag had nothing to do with the change, it was either a componet of the slab or a residue left behind from the coin being improperly conserved.

keets

hey Steve

since you state that it's a newer NGC slab i would suspect that the coin was dipped and then improperly rinsed. the remaining dip is causing the coin to tone. my suggestion would be to watch that coin at home very closely and determine if it continues at which point you might have to make a decision-----keep it as is, sell or consider other alternatives.

tone isn't necessarily caused by the environment in a short period of time like this and in a selective manner, although that surely could be the case. it's most likely caused by some substance on the surface of the coin.

al h.