Coin Terminology and Glossary

The Coin Collecting Dictionary includes 546 titles used widely in the coin collectors community, and has received over 873478 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) 53079  14.47%
Silver Clad 30405  8.29%
Coin Silver 22394  6.10%
Slabbed Coins 21253  5.79%
BN 20637  5.62%
Encapsulated Coin 20115  5.48%
RB 19059  5.19%
Deep Cameo (DC or DCAM) 16471  4.49%
PF (PF60, PF70) 15945  4.35%
Reeded Edge 15199  4.14%
Ultra Cameo (UCAM) 15143  4.13%
PQ 13950  3.80%
MS (MS60-MS70) 13832  3.77%
PR (PR60, PR70) 13789  3.76%
Rarity 13461  3.67%
Incuse 12816  3.49%
High Relief 12704  3.46%
Coin drop 12616  3.44%
Reverse Cameo 12076  3.29%
Obverse or Face side 11967  3.26%