Coin Terminology and Glossary

The Coin Collecting Dictionary includes 546 titles used widely in the coin collectors community, and has received over 1023315 search inquires.

Random 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

Definition	Searches	Percentage
Specimen Proof (SP-70 or PF-70)	55135	13.64%
Silver Clad	32104	7.94%
Coin Silver	24186	5.98%
Slabbed Coins	23114	5.72%
BN	22687	5.61%
Encapsulated Coin	21723	5.37%
RB	21138	5.23%
Deep Cameo (DC or DCAM)	18170	4.49%
PF (PF60, PF70)	17900	4.43%
Reeded Edge	16938	4.19%
Ultra Cameo (UCAM)	16834	4.16%
PR (PR60, PR70)	15883	3.93%
Rarity	15812	3.91%
PQ	15713	3.89%
MS (MS60-MS70)	15464	3.82%
Incuse	14774	3.65%
Coin drop	14492	3.58%
High Relief	14396	3.56%
Reverse Cameo	14064	3.48%
Obverse or Face side	13789	3.41%