Coin Terminology and Glossary

The Coin Collecting Dictionary includes 546 titles used widely in the coin collectors community, and has received over 906228 search inquires.

Selected title: COA

Explanation: Certificate of authenticity. A paper certificate usually from the issuing mint that declares the coin or item is genuine

Most popular coin titles

Definition	Searches	Percentage
Specimen Proof (SP-70 or PF-70)	53778	14.18%
Silver Clad	30974	8.16%
Coin Silver	23024	6.07%
Slabbed Coins	21864	5.76%
BN	21327	5.62%
Encapsulated Coin	20669	5.45%
RB	19718	5.20%
Deep Cameo (DC or DCAM)	17043	4.49%
PF (PF60, PF70)	16631	4.38%
Reeded Edge	15771	4.16%
Ultra Cameo (UCAM)	15751	4.15%
PQ	14527	3.83%
MS (MS60-MS70)	14397	3.79%
PR (PR60, PR70)	14358	3.78%
Rarity	14256	3.76%
Incuse	13465	3.55%
Coin drop	13253	3.49%
High Relief	13250	3.49%
Reverse Cameo	12722	3.35%
Obverse or Face side	12545	3.31%