Centering coins in TPG Slabs

Exbrit · September 11, 2015 4:08AM

Some time ago, one of the members described a fool proof way of centering coins in TPG slabs that have gotten off-centered. The technique was to vibrate the coin so that it would move. Does anyone remember the exact process he used to achieve this?

I cannot find the OP.

LindeDad · September 11, 2015 4:20AM

Many just use a book to cushion and tap on the corner, when it moves just keep tapping until straight.

You tube has videos of the method.

lasvegasteddy · September 11, 2015 4:23AM

electric toothbrush on a corner i've heard works great

BryceM · September 11, 2015 4:23AM

I use an electric toothbrush. Hold it in various places on the slab until the thing starts to move. Smacking a random corner of the slab against a table will sometimes work too.

TigersFan2 · September 11, 2015 4:26AM

Thanks for asking. I was wondering this a few weeks ago. Bought a cent in a PCGS slab. The coin had rotated about 5 degrees whereas the auction listing had the coin vertical. I figured the jostling around by the USPS caused the coin to rotate. I thought about jostling it more, but thought, "What if it continues to rotate the wrong direction?" Anyway, not a biggie for me and the coin is fine how it is.

CoinJunkie · September 11, 2015 4:39AM

<< <i>I thought about jostling it more, but thought, "What if it continues to rotate the wrong direction?" >>

Firmly tapping opposite corners (e.g., bottom right as opposed to bottom left) against a hard surface will cause
the coin to rotate in opposite directions.