Coin Terminology and Glossary

The Coin Collecting Dictionary includes 546 titles used widely in the coin collectors community, and has received over 981406 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) 54797  13.78%
Silver Clad 31806  8.00%
Coin Silver 23887  6.01%
Slabbed Coins 22780  5.73%
BN 22330  5.61%
Encapsulated Coin 21457  5.39%
RB 20721  5.21%
Deep Cameo (DC or DCAM) 17890  4.50%
PF (PF60, PF70) 17556  4.41%
Reeded Edge 16635  4.18%
Ultra Cameo (UCAM) 16573  4.17%
PQ 15420  3.88%
Rarity 15379  3.87%
PR (PR60, PR70) 15279  3.84%
MS (MS60-MS70) 15203  3.82%
Incuse 14451  3.63%
Coin drop 14175  3.56%
High Relief 14104  3.55%
Reverse Cameo 13712  3.45%
Obverse or Face side 13414  3.37%