Glossary of Numismatic Terms starting with P

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Patina
Surface film or discolouration caused by oxidation sometimes found on older silver, copper or bronze coins.
Pattern
Coin struck from official dies but not intended for circulation, such as for demonstration or specimen test purposes only.
PGCS
Professional Coin Grading Service, a leading third-party coin grading service located in USA.
Piedfort
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.
Planchet
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.
Portrait
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
Proof
Coins specially struck for collectors using polished dies and blanks, giving a mirror finish and raised areas which may be frosted in appearance.
Proof Set
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 Section.

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UK On eBay UK:
1970 to 1982 ROYAL MINT UNITED KINGDOM PROOF COIN SET - CHOOSE YOUR YEAR!
1970 to 1982 ROYAL MINT UNITED KINGDOM PROOF COIN SET - CHOOSE YOUR YEAR!
£ 34.99
1997 Britannia Royal Mint Silver Proof Collection - 4 Coins Set
1997 Britannia Royal Mint Silver Proof Collection - 4 Coins Set
£ 199.00
17 ROYAL MINT COIN PROOF SETS comprising 71-82 and 83-87
17 ROYAL MINT COIN PROOF SETS comprising 71-82 and 83-87
£ 270.00
ROYAL MINT FLAT DELUXE PROOF SETS 2000 TO 2016 CHOICE OF DATE
ROYAL MINT FLAT DELUXE PROOF SETS 2000 TO 2016 CHOICE OF DATE
£ 37.99
2022 Annual Set Silver Proof Platinum Jubilee with a Leftie £1 Limited to 1/550
2022 Annual Set Silver Proof Platinum Jubilee with a Leftie £1 Limited to 1/550
£ 775.00
2009 Royal Mint proof coin set shield 6 coins
2009 Royal Mint proof coin set shield 6 coins
£ 11.55
 ROYAL MINT PROOF SETS BLUE DELUXE 1983 TO 1999 BIRTHDAY PRESENT COIN YEAR SETS
ROYAL MINT PROOF SETS BLUE DELUXE 1983 TO 1999 BIRTHDAY PRESENT COIN YEAR SETS
£ 19.99
UK PROOF £1 One Pound Coins 1983 -2015 Choice of Year
UK PROOF £1 One Pound Coins 1983 -2015 Choice of Year
£ 5.99

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Glossary of Numismatic Terms

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 glossary@coinparade.co.uk.