Coin Terminology and Glossary

The Coin Collecting Dictionary includes 546 titles used widely in the coin collectors community, and has received over 926062 search inquires.

Selected title: Porous

Explanation: Having a granular surface as the result of oxidation, most frequently found with older copper coins

Most popular coin titles

Definition	Searches	Percentage
Specimen Proof (SP-70 or PF-70)	54126	14.03%
Silver Clad	31271	8.10%
Coin Silver	23337	6.05%
Slabbed Coins	22179	5.75%
BN	21687	5.62%
Encapsulated Coin	20982	5.44%
RB	20051	5.20%
Deep Cameo (DC or DCAM)	17357	4.50%
PF (PF60, PF70)	16948	4.39%
Reeded Edge	16075	4.17%
Ultra Cameo (UCAM)	16063	4.16%
PQ	14838	3.85%
MS (MS60-MS70)	14698	3.81%
PR (PR60, PR70)	14680	3.80%
Rarity	14642	3.79%
Incuse	13812	3.58%
High Relief	13569	3.52%
Coin drop	13555	3.51%
Reverse Cameo	13081	3.39%
Obverse or Face side	12842	3.33%