Coin Terminology and Glossary

The Coin Collecting Dictionary includes 546 titles used widely in the coin collectors community, and has received over 1103876 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) 55894  13.30%
Silver Clad 32805  7.80%
Coin Silver 24857  5.91%
Slabbed Coins 23776  5.66%
BN 23360  5.56%
Encapsulated Coin 22302  5.31%
RB 21809  5.19%
PF (PF60, PF70) 18791  4.47%
Deep Cameo (DC or DCAM) 18768  4.46%
Reeded Edge 17616  4.19%
Ultra Cameo (UCAM) 17414  4.14%
Obverse or Face side 16875  4.01%
PR (PR60, PR70) 16731  3.98%
Rarity 16643  3.96%
PQ 16354  3.89%
MS (MS60-MS70) 16048  3.82%
Incuse 15378  3.66%
Coin drop 15196  3.61%
High Relief 15003  3.57%
Reverse Cameo 14742  3.51%