Coin Terminology and Glossary

The Coin Collecting Dictionary includes 546 titles used widely in the coin collectors community, and has received over 959143 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) 54574  13.86%
Silver Clad 31618  8.03%
Coin Silver 23705  6.02%
Slabbed Coins 22564  5.73%
BN 22104  5.62%
Encapsulated Coin 21294  5.41%
RB 20486  5.20%
Deep Cameo (DC or DCAM) 17719  4.50%
PF (PF60, PF70) 17351  4.41%
Reeded Edge 16449  4.18%
Ultra Cameo (UCAM) 16401  4.17%
PQ 15235  3.87%
Rarity 15135  3.85%
PR (PR60, PR70) 15077  3.83%
MS (MS60-MS70) 15015  3.81%
Incuse 14231  3.62%
Coin drop 13969  3.55%
High Relief 13919  3.54%
Reverse Cameo 13492  3.43%
Obverse or Face side 13217  3.36%