Coin Terminology and Glossary

The Coin Collecting Dictionary includes 546 titles used widely in the coin collectors community, and has received over 960542 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) 54589  13.86%
Silver Clad 31630  8.03%
Coin Silver 23717  6.02%
Slabbed Coins 22577  5.73%
BN 22114  5.61%
Encapsulated Coin 21306  5.41%
RB 20497  5.20%
Deep Cameo (DC or DCAM) 17733  4.50%
PF (PF60, PF70) 17363  4.41%
Reeded Edge 16462  4.18%
Ultra Cameo (UCAM) 16411  4.17%
PQ 15247  3.87%
Rarity 15144  3.84%
PR (PR60, PR70) 15092  3.83%
MS (MS60-MS70) 15028  3.81%
Incuse 14242  3.62%
Coin drop 13991  3.55%
High Relief 13931  3.54%
Reverse Cameo 13503  3.43%
Obverse or Face side 13229  3.36%