Coin Terminology and Glossary

The Coin Collecting Dictionary includes 546 titles used widely in the coin collectors community, and has received over 857889 search inquires.

Selected title: 1-O-V or 2-R-III or similar

Explanation: These odd looking notations look complicated but are actually quite simple. They are used as a numbering system for doubled die coins. The first number is the number assigned to the die. The letter in the middle will be either an 'O' (obverse), or 'R' (reverse). The third item is the class number, i.e. the type or cause of the doubling. It is noted by using Roman numerals I thru VIII. Other notations that may be used are MD for master die, MH for modified hub, Pr for proof coin, (3) for tripled die, and (4) for quadrupled die. EXAMPLE: 1963D 1? 1-O-VII tells us that the coin is a One Cent piece dated 1963, struck in Denver, die #1, the doubling is on the obverse, and is a class VII variety

Most popular coin titles

Definition	Searches	Percentage
Specimen Proof (SP-70 or PF-70)	52641	14.55%
Silver Clad	30151	8.33%
Coin Silver	22159	6.12%
Slabbed Coins	21030	5.81%
BN	20393	5.64%
Encapsulated Coin	19882	5.49%
RB	18808	5.20%
Deep Cameo (DC or DCAM)	16177	4.47%
PF (PF60, PF70)	15685	4.33%
Reeded Edge	14956	4.13%
Ultra Cameo (UCAM)	14901	4.12%
PQ	13730	3.79%
MS (MS60-MS70)	13594	3.76%
PR (PR60, PR70)	13559	3.75%
Rarity	13190	3.65%
Incuse	12600	3.48%
High Relief	12489	3.45%
Coin drop	12311	3.40%
Reverse Cameo	11845	3.27%
Obverse or Face side	11745	3.25%