Coin Terminology and Glossary

The Coin Collecting Dictionary includes 546 titles used widely in the coin collectors community, and has received over 1049154 search inquires.

Selected title: Castaing machine
Explanation: A device invented by French engineer Jean Castaing, which added the edge lettering and devices to early U.S. coins before they were struck. This machine was used until close collar dies were introduced which applied the edge device in the striking process

Most popular coin titles

DefinitionSearchesPercentage
Specimen Proof (SP-70 or PF-70) 55395  13.56%
Silver Clad 32315  7.91%
Coin Silver 24407  5.98%
Slabbed Coins 23322  5.71%
BN 22896  5.61%
Encapsulated Coin 21899  5.36%
RB 21354  5.23%
Deep Cameo (DC or DCAM) 18375  4.50%
PF (PF60, PF70) 18087  4.43%
Reeded Edge 17151  4.20%
Ultra Cameo (UCAM) 16999  4.16%
Rarity 16104  3.94%
PR (PR60, PR70) 16082  3.94%
PQ 15899  3.89%
MS (MS60-MS70) 15656  3.83%
Incuse 14958  3.66%
Coin drop 14705  3.60%
High Relief 14572  3.57%
Reverse Cameo 14259  3.49%
Obverse or Face side 14008  3.43%