Coin Terminology and Glossary

The Coin Collecting Dictionary includes 546 titles used widely in the coin collectors community, and has received over 944433 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) 54361  13.93%
Silver Clad 31474  8.07%
Coin Silver 23550  6.04%
Slabbed Coins 22403  5.74%
BN 21945  5.62%
Encapsulated Coin 21170  5.43%
RB 20297  5.20%
Deep Cameo (DC or DCAM) 17569  4.50%
PF (PF60, PF70) 17186  4.40%
Reeded Edge 16292  4.18%
Ultra Cameo (UCAM) 16260  4.17%
PQ 15047  3.86%
Rarity 14903  3.82%
PR (PR60, PR70) 14887  3.82%
MS (MS60-MS70) 14877  3.81%
Incuse 14035  3.60%
Coin drop 13795  3.54%
High Relief 13766  3.53%
Reverse Cameo 13325  3.42%
Obverse or Face side 13040  3.34%