Coin Terminology and Glossary

The Coin Collecting Dictionary includes 546 titles used widely in the coin collectors community, and has received over 1023124 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) 55132 13.64%
Silver Clad 32100 7.94%
Coin Silver 24184 5.98%
Slabbed Coins 23112 5.72%
BN 22686 5.61%
Encapsulated Coin 21719 5.37%
RB 21137 5.23%
Deep Cameo (DC or DCAM) 18169 4.49%
PF (PF60, PF70) 17898 4.43%
Reeded Edge 16934 4.19%
Ultra Cameo (UCAM) 16832 4.16%
PR (PR60, PR70) 15883 3.93%
Rarity 15811 3.91%
PQ 15710 3.89%
MS (MS60-MS70) 15462 3.82%
Incuse 14771 3.65%
Coin drop 14488 3.58%
High Relief 14391 3.56%
Reverse Cameo 14060 3.48%
Obverse or Face side 13787 3.41%