Coin Terminology and Glossary

The Coin Collecting Dictionary includes 546 titles used widely in the coin collectors community, and has received over 950398 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) 54453  13.90%
Silver Clad 31537  8.05%
Coin Silver 23615  6.03%
Slabbed Coins 22469  5.74%
BN 22016  5.62%
Encapsulated Coin 21234  5.42%
RB 20377  5.20%
Deep Cameo (DC or DCAM) 17624  4.50%
PF (PF60, PF70) 17248  4.40%
Reeded Edge 16355  4.18%
Ultra Cameo (UCAM) 16322  4.17%
PQ 15120  3.86%
Rarity 14996  3.83%
PR (PR60, PR70) 14954  3.82%
MS (MS60-MS70) 14937  3.81%
Incuse 14111  3.60%
Coin drop 13869  3.54%
High Relief 13835  3.53%
Reverse Cameo 13400  3.42%
Obverse or Face side 13105  3.35%