Coin Terminology and Glossary

The Coin Collecting Dictionary includes 546 titles used widely in the coin collectors community, and has received over 962889 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) 54617  13.85%
Silver Clad 31660  8.03%
Coin Silver 23735  6.02%
Slabbed Coins 22599  5.73%
BN 22136  5.61%
Encapsulated Coin 21324  5.41%
RB 20523  5.20%
Deep Cameo (DC or DCAM) 17758  4.50%
PF (PF60, PF70) 17386  4.41%
Reeded Edge 16485  4.18%
Ultra Cameo (UCAM) 16433  4.17%
PQ 15268  3.87%
Rarity 15175  3.85%
PR (PR60, PR70) 15110  3.83%
MS (MS60-MS70) 15055  3.82%
Incuse 14264  3.62%
Coin drop 14013  3.55%
High Relief 13950  3.54%
Reverse Cameo 13535  3.43%
Obverse or Face side 13256  3.36%