Coin Glossary

You can find most popular coin collecting phrases in this coin glossary.

Coin Glossary


unc or unk or UN - abbreviation for uncirculated.

uncirculated or un-circulated - a new condition coin that does not have any sign of wear. Marks on the coin that may come from the manufacturing process do not keep a coin from being un-circulated. (Example, bag marks.) Even the slightest amount of wear or cleaning will keep a coin from grading uncirculated.

upsetting mill - machine used in coin production to raise the rim on both sides of a blank (planchet).

Coin Collecting News
Get ready for the end of the 'alt-coin' bear market in cryptocurrency
The crypto market has been on the decline since the beginning of 2018, but Fundstrat expects a rally in "alt-coins" is on the horizon. "We believe the alt-coin bear market is largely over," the firm said in a note out to clients Tuesday. Good news for ... more info

Alt-coin bear market is over, but bitcoin is still the best bet: Wall Street's Tom Lee
Bitcoin bull Tom Lee says the alt-coin bear market is over. But he still recommends investing in bitcoin. "Whether regulations change around security tokens and registration, bitcoin sits in its own sphere," he says. Lee said he expects the lesser-known ... more info

Executive Order Bans Venezuela’s "Petro" Coin Cryptocurrency in US
The U.S. executive branch issued an executive order prohibiting the use or purchase of Venezuela’s Petro cryptocurrency, claiming the currency was issued unlawfully in an effort to circumvent U.S. sanctions against Venezuela, and in particular the ... more info