Coin Terminology and Glossary

The Coin Collecting Dictionary includes 546 titles used widely in the coin collectors community, and has received over 1016730 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) 55083 13.65%
Silver Clad 32058 7.95%
Coin Silver 24145 5.98%
Slabbed Coins 23064 5.72%
BN 22638 5.61%
Encapsulated Coin 21681 5.37%
RB 21076 5.22%
Deep Cameo (DC or DCAM) 18134 4.49%
PF (PF60, PF70) 17858 4.43%
Reeded Edge 16896 4.19%
Ultra Cameo (UCAM) 16800 4.16%
PR (PR60, PR70) 15843 3.93%
Rarity 15744 3.90%
PQ 15671 3.88%
MS (MS60-MS70) 15428 3.82%
Incuse 14730 3.65%
Coin drop 14446 3.58%
High Relief 14358 3.56%
Reverse Cameo 14018 3.47%
Obverse or Face side 13737 3.41%