Coin Terminology and Glossary

The Coin Collecting Dictionary includes 546 titles used widely in the coin collectors community, and has received over 1074017 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) 55614  13.47%
Silver Clad 32508  7.88%
Coin Silver 24625  5.97%
Slabbed Coins 23523  5.70%
BN 23091  5.59%
Encapsulated Coin 22079  5.35%
RB 21556  5.22%
Deep Cameo (DC or DCAM) 18549  4.49%
PF (PF60, PF70) 18468  4.47%
Reeded Edge 17371  4.21%
Ultra Cameo (UCAM) 17191  4.16%
PR (PR60, PR70) 16408  3.97%
Rarity 16326  3.96%
PQ 16115  3.90%
MS (MS60-MS70) 15843  3.84%
Incuse 15133  3.67%
Coin drop 14933  3.62%
High Relief 14781  3.58%
Reverse Cameo 14461  3.50%
Obverse or Face side 14195  3.44%