Coin Terminology and Glossary

The Coin Collecting Dictionary includes 546 titles used widely in the coin collectors community, and has received over 1017411 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)	55088	13.65%
Silver Clad	32062	7.95%
Coin Silver	24148	5.98%
Slabbed Coins	23069	5.72%
BN	22643	5.61%
Encapsulated Coin	21683	5.37%
RB	21081	5.22%
Deep Cameo (DC or DCAM)	18136	4.49%
PF (PF60, PF70)	17861	4.43%
Reeded Edge	16898	4.19%
Ultra Cameo (UCAM)	16808	4.17%
PR (PR60, PR70)	15846	3.93%
Rarity	15754	3.90%
PQ	15673	3.88%
MS (MS60-MS70)	15430	3.82%
Incuse	14735	3.65%
Coin drop	14448	3.58%
High Relief	14361	3.56%
Reverse Cameo	14025	3.48%
Obverse or Face side	13742	3.41%