Coin Terminology and Glossary

The Coin Collecting Dictionary includes 546 titles used widely in the coin collectors community, and has received over 1005596 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) 54996  13.69%
Silver Clad 31988  7.96%
Coin Silver 24070  5.99%
Slabbed Coins 22969  5.72%
BN 22549  5.61%
Encapsulated Coin 21615  5.38%
RB 20969  5.22%
Deep Cameo (DC or DCAM) 18065  4.50%
PF (PF60, PF70) 17777  4.43%
Reeded Edge 16818  4.19%
Ultra Cameo (UCAM) 16732  4.16%
PR (PR60, PR70) 15775  3.93%
Rarity 15614  3.89%
PQ 15595  3.88%
MS (MS60-MS70) 15350  3.82%
Incuse 14646  3.65%
Coin drop 14365  3.58%
High Relief 14288  3.56%
Reverse Cameo 13935  3.47%
Obverse or Face side 13613  3.39%