Coin Terminology and Glossary

The Coin Collecting Dictionary includes 546 titles used widely in the coin collectors community, and has received over 1010042 search inquires.

Selected title: Breast feathers
Explanation: The central feathers seen on numerous eagle designs. Fully struck coins usually command a premium and the breast feathers are usually the highest point of the reverse. (They are the most deeply recessed area of the die, so metal sometimes does not completely fill the breast feather area, usually because of insufficient striking pressure. Incorrectly spaced or lapped dies will also cause 'striking' weakness)

Most popular coin titles

DefinitionSearchesPercentage
Specimen Proof (SP-70 or PF-70) 55028  13.68%
Silver Clad 32011  7.96%
Coin Silver 24101  5.99%
Slabbed Coins 23004  5.72%
BN 22588  5.61%
Encapsulated Coin 21641  5.38%
RB 21004  5.22%
Deep Cameo (DC or DCAM) 18099  4.50%
PF (PF60, PF70) 17808  4.43%
Reeded Edge 16851  4.19%
Ultra Cameo (UCAM) 16758  4.16%
PR (PR60, PR70) 15803  3.93%
Rarity 15659  3.89%
PQ 15624  3.88%
MS (MS60-MS70) 15385  3.82%
Incuse 14677  3.65%
Coin drop 14400  3.58%
High Relief 14315  3.56%
Reverse Cameo 13970  3.47%
Obverse or Face side 13649  3.39%