Coin Terminology and Glossary

The Coin Collecting Dictionary includes 546 titles used widely in the coin collectors community, and has received over 1013951 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) 55066  13.66%
Silver Clad 32040  7.95%
Coin Silver 24130  5.99%
Slabbed Coins 23033  5.72%
BN 22619  5.61%
Encapsulated Coin 21667  5.38%
RB 21041  5.22%
Deep Cameo (DC or DCAM) 18119  4.50%
PF (PF60, PF70) 17838  4.43%
Reeded Edge 16877  4.19%
Ultra Cameo (UCAM) 16787  4.17%
PR (PR60, PR70) 15833  3.93%
Rarity 15699  3.90%
PQ 15650  3.88%
MS (MS60-MS70) 15414  3.82%
Incuse 14709  3.65%
Coin drop 14431  3.58%
High Relief 14348  3.56%
Reverse Cameo 14001  3.47%
Obverse or Face side 13715  3.40%