Coin Terminology and Glossary

The Coin Collecting Dictionary includes 546 titles used widely in the coin collectors community, and has received over 957658 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) 54548  13.87%
Silver Clad 31603  8.04%
Coin Silver 23688  6.02%
Slabbed Coins 22543  5.73%
BN 22088  5.62%
Encapsulated Coin 21282  5.41%
RB 20471  5.21%
Deep Cameo (DC or DCAM) 17687  4.50%
PF (PF60, PF70) 17329  4.41%
Reeded Edge 16434  4.18%
Ultra Cameo (UCAM) 16384  4.17%
PQ 15212  3.87%
Rarity 15096  3.84%
PR (PR60, PR70) 15045  3.83%
MS (MS60-MS70) 14997  3.81%
Incuse 14209  3.61%
Coin drop 13945  3.55%
High Relief 13899  3.53%
Reverse Cameo 13472  3.43%
Obverse or Face side 13188  3.35%