Coin Terminology and Glossary

The Coin Collecting Dictionary includes 546 titles used widely in the coin collectors community, and has received over 926458 search inquires.

Selected title: Machine Doubling
Explanation: Doubling of details resulting from loose dies during striking (generally considered to have no numismatic value)

Most popular coin titles

DefinitionSearchesPercentage
Specimen Proof (SP-70 or PF-70) 54135 14.02%
Silver Clad 31281 8.10%
Coin Silver 23345 6.05%
Slabbed Coins 22187 5.75%
BN 21696 5.62%
Encapsulated Coin 20990 5.44%
RB 20063 5.20%
Deep Cameo (DC or DCAM) 17369 4.50%
PF (PF60, PF70) 16960 4.39%
Reeded Edge 16083 4.17%
Ultra Cameo (UCAM) 16069 4.16%
PQ 14847 3.85%
MS (MS60-MS70) 14704 3.81%
PR (PR60, PR70) 14689 3.81%
Rarity 14647 3.79%
Incuse 13821 3.58%
High Relief 13576 3.52%
Coin drop 13564 3.51%
Reverse Cameo 13092 3.39%
Obverse or Face side 12850 3.33%