Coin Glossary

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

Coin Glossary

U

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).

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Coin Collecting News
05/23/2019
ChargeMe LIR2032 and LIR2025 coin battery charger
Engineer Mohammed who has been tinkering with electronics for more than 12 years has created a coin cell battery charger capable of charging LIR2032 and LIR2025 coin cell batteries. “I make a lot of ... more info

05/23/2019
Why The Facebook Coin Could Be A Watershed Moment In Crypto
There’s been a lot written about how Facebook can use the coin to pay users to watch more advertising. Let’s run the numbers on that. The average user spends 35 minutes a day on Facebook. Facebook ... more info

05/25/2019
‘GlobalCoin’: Not Everyone Thinks Facebook’s Crypto Project is a S***coin
Unpopular opinion: I think the fact that Facebook is working on a crypocurrency is awesome. — zooko (@zooko) May 24, 2019 Facebook’s cryptocurrency project is a long way from the days of ... more info