Coin Terminology and Glossary

The Coin Collecting Dictionary includes 546 titles used widely in the coin collectors community, and has received over 906048 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) 53767  14.18%
Silver Clad 30965  8.16%
Coin Silver 23012  6.07%
Slabbed Coins 21850  5.76%
BN 21313  5.62%
Encapsulated Coin 20658  5.45%
RB 19698  5.19%
Deep Cameo (DC or DCAM) 17027  4.49%
PF (PF60, PF70) 16620  4.38%
Reeded Edge 15756  4.15%
Ultra Cameo (UCAM) 15737  4.15%
PQ 14517  3.83%
MS (MS60-MS70) 14387  3.79%
PR (PR60, PR70) 14346  3.78%
Rarity 14239  3.75%
Incuse 13450  3.55%
Coin drop 13241  3.49%
High Relief 13237  3.49%
Reverse Cameo 12707  3.35%
Obverse or Face side 12533  3.30%