Coin Terminology and Glossary

The Coin Collecting Dictionary includes 546 titles used widely in the coin collectors community, and has received over 887117 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) 53405 14.33%
Silver Clad 30670 8.23%
Coin Silver 22682 6.09%
Slabbed Coins 21534 5.78%
BN 20945 5.62%
Encapsulated Coin 20375 5.47%
RB 19333 5.19%
Deep Cameo (DC or DCAM) 16717 4.49%
PF (PF60, PF70) 16267 4.37%
Reeded Edge 15475 4.15%
Ultra Cameo (UCAM) 15413 4.14%
PQ 14215 3.81%
MS (MS60-MS70) 14081 3.78%
PR (PR60, PR70) 14045 3.77%
Rarity 13806 3.71%
Incuse 13114 3.52%
High Relief 12954 3.48%
Coin drop 12937 3.47%
Reverse Cameo 12382 3.32%
Obverse or Face side 12247 3.29%