Surface film or discolouration caused by oxidation sometimes found on older silver, copper or bronze coins.
Coin struck from official dies but not intended for circulation, such as for demonstration or specimen test purposes only.
Professional Coin Grading Service, a leading third-party coin grading service located in USA.
A coin struck on a blank that is thicker than normal, usually twice as thick. Example: A Piedfort £2 is a £2 coin that is twice as thick. Increases the weight of high value metal coins like silver.
Known in the UK as a
Blank, this is the (usually) circlular metal disk ready to be used to make a coin.
Pleidiol Wyf i’m Gwlad
Meaning: 'True am I to my country’, from the Welsh National Anthem.
Engraving of a person, especially one depicting only the face or head and shoulders. Sometimes called a bust.
Pro Tanto Quid Retribuamus
Meaning: 'What shall we give in return for so much.' The Motto of Belfast
Coins specially struck for collectors using polished dies and blanks, giving a mirror finish and raised areas which may be frosted in appearance.
A set of proof coins sold by the mint, usually connected by a date or theme, like a 2001 sovereign set. See the
Royal Mint Proof Sets
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On eBay UK:
1970 to 1982 ROYAL MINT UNITED KINGDOM PROOF COIN SET - CHOOSE YOUR YEAR!
2022 PROOF Shield Coins - 20p 10p 5p 2p 1p - From Royal Mint Annual Coin Set
Brilliant Uncirculated £1 One Pound Coins 1983 -2015 Choice of Year - UNC
The 2022 United Kingdom Brilliant Uncirculated Definitive Coin Set - Pre Order
ROYAL MINT THE SOVEREIGN 2018 THREE COIN GOLD PROOF SET #0031
2011 Proof Set in Box. 14 Coins Including the Duke of Edinburgh £5. Rare Set
ROYAL MINT BOXED 2001 STANDARD U.K. PROOF SET OF 10 COINS WITH CERTIFICATE
10oz Queens beast Box With 11 slots to hold entire set including Completer
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Numismatics is the study of coin collecting and it also has its own language with many words and terms. Our Glossary of Numismatic Terms give the explanation to some of these coin collecting words. To contribute terms please email them to