Coin Terminology and Glossary

The Coin Collecting Dictionary includes 546 titles used widely in the coin collectors community, and has received over 1095890 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) 55839  13.32%
Silver Clad 32748  7.81%
Coin Silver 24804  5.92%
Slabbed Coins 23726  5.66%
BN 23314  5.56%
Encapsulated Coin 22248  5.31%
RB 21753  5.19%
Deep Cameo (DC or DCAM) 18726  4.47%
PF (PF60, PF70) 18725  4.47%
Reeded Edge 17557  4.19%
Ultra Cameo (UCAM) 17366  4.14%
Obverse or Face side 16829  4.01%
PR (PR60, PR70) 16640  3.97%
Rarity 16583  3.96%
PQ 16296  3.89%
MS (MS60-MS70) 16010  3.82%
Incuse 15322  3.65%
Coin drop 15140  3.61%
High Relief 14956  3.57%
Reverse Cameo 14683  3.50%