Coin Terminology and Glossary

The Coin Collecting Dictionary includes 546 titles used widely in the coin collectors community, and has received over 966600 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) 54652  13.83%
Silver Clad 31687  8.02%
Coin Silver 23771  6.02%
Slabbed Coins 22636  5.73%
BN 22181  5.61%
Encapsulated Coin 21348  5.40%
RB 20564  5.21%
Deep Cameo (DC or DCAM) 17789  4.50%
PF (PF60, PF70) 17418  4.41%
Reeded Edge 16512  4.18%
Ultra Cameo (UCAM) 16463  4.17%
PQ 15310  3.88%
Rarity 15216  3.85%
PR (PR60, PR70) 15142  3.83%
MS (MS60-MS70) 15083  3.82%
Incuse 14311  3.62%
Coin drop 14048  3.56%
High Relief 13985  3.54%
Reverse Cameo 13581  3.44%
Obverse or Face side 13301  3.37%