Coin Terminology and Glossary

The Coin Collecting Dictionary includes 546 titles used widely in the coin collectors community, and has received over 859200 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) 52687 14.53%
Silver Clad 30177 8.32%
Coin Silver 22182 6.12%
Slabbed Coins 21054 5.81%
BN 20413 5.63%
Encapsulated Coin 19907 5.49%
RB 18831 5.19%
Deep Cameo (DC or DCAM) 16208 4.47%
PF (PF60, PF70) 15708 4.33%
Reeded Edge 14979 4.13%
Ultra Cameo (UCAM) 14927 4.12%
PQ 13750 3.79%
MS (MS60-MS70) 13624 3.76%
PR (PR60, PR70) 13585 3.75%
Rarity 13217 3.65%
Incuse 12624 3.48%
High Relief 12511 3.45%
Coin drop 12342 3.40%
Reverse Cameo 11867 3.27%
Obverse or Face side 11768 3.25%