Coin Terminology and Glossary

The Coin Collecting Dictionary includes 546 titles used widely in the coin collectors community, and has received over 1052699 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) 55425  13.55%
Silver Clad 32338  7.91%
Coin Silver 24434  5.97%
Slabbed Coins 23343  5.71%
BN 22920  5.60%
Encapsulated Coin 21927  5.36%
RB 21367  5.22%
Deep Cameo (DC or DCAM) 18397  4.50%
PF (PF60, PF70) 18108  4.43%
Reeded Edge 17182  4.20%
Ultra Cameo (UCAM) 17016  4.16%
Rarity 16138  3.95%
PR (PR60, PR70) 16107  3.94%
PQ 15929  3.90%
MS (MS60-MS70) 15675  3.83%
Incuse 14975  3.66%
Coin drop 14740  3.60%
High Relief 14603  3.57%
Reverse Cameo 14283  3.49%
Obverse or Face side 14026  3.43%