Coin Terminology and Glossary

The Coin Collecting Dictionary includes 546 titles used widely in the coin collectors community, and has received over 1028602 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) 55185 13.62%
Silver Clad 32141 7.93%
Coin Silver 24225 5.98%
Slabbed Coins 23156 5.72%
BN 22735 5.61%
Encapsulated Coin 21757 5.37%
RB 21188 5.23%
Deep Cameo (DC or DCAM) 18203 4.49%
PF (PF60, PF70) 17935 4.43%
Reeded Edge 16985 4.19%
Ultra Cameo (UCAM) 16862 4.16%
PR (PR60, PR70) 15910 3.93%
Rarity 15857 3.91%
PQ 15747 3.89%
MS (MS60-MS70) 15503 3.83%
Incuse 14809 3.66%
Coin drop 14530 3.59%
High Relief 14426 3.56%
Reverse Cameo 14107 3.48%
Obverse or Face side 13832 3.41%