Coin Terminology and Glossary

The Coin Collecting Dictionary includes 546 titles used widely in the coin collectors community, and has received over 1106196 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) 55910  13.29%
Silver Clad 32822  7.80%
Coin Silver 24878  5.91%
Slabbed Coins 23801  5.66%
BN 23378  5.56%
Encapsulated Coin 22318  5.30%
RB 21827  5.19%
PF (PF60, PF70) 18810  4.47%
Deep Cameo (DC or DCAM) 18784  4.46%
Reeded Edge 17634  4.19%
Ultra Cameo (UCAM) 17434  4.14%
Obverse or Face side 16893  4.01%
PR (PR60, PR70) 16754  3.98%
Rarity 16659  3.96%
PQ 16367  3.89%
MS (MS60-MS70) 16065  3.82%
Incuse 15396  3.66%
Coin drop 15215  3.62%
High Relief 15020  3.57%
Reverse Cameo 14754  3.51%