Coin Terminology and Glossary

The Coin Collecting Dictionary includes 546 titles used widely in the coin collectors community, and has received over 969871 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) 54695  13.82%
Silver Clad 31721  8.01%
Coin Silver 23802  6.01%
Slabbed Coins 22674  5.73%
BN 22230  5.62%
Encapsulated Coin 21380  5.40%
RB 20608  5.21%
Deep Cameo (DC or DCAM) 17821  4.50%
PF (PF60, PF70) 17461  4.41%
Reeded Edge 16550  4.18%
Ultra Cameo (UCAM) 16500  4.17%
PQ 15344  3.88%
Rarity 15274  3.86%
PR (PR60, PR70) 15179  3.83%
MS (MS60-MS70) 15113  3.82%
Incuse 14353  3.63%
Coin drop 14081  3.56%
High Relief 14026  3.54%
Reverse Cameo 13618  3.44%
Obverse or Face side 13338  3.37%