Coin Terminology and Glossary

The Coin Collecting Dictionary includes 546 titles used widely in the coin collectors community, and has received over 986814 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) 54833  13.75%
Silver Clad 31841  7.99%
Coin Silver 23923  6.00%
Slabbed Coins 22827  5.73%
BN 22376  5.61%
Encapsulated Coin 21488  5.39%
RB 20768  5.21%
Deep Cameo (DC or DCAM) 17929  4.50%
PF (PF60, PF70) 17608  4.42%
Reeded Edge 16681  4.18%
Ultra Cameo (UCAM) 16605  4.16%
PQ 15459  3.88%
Rarity 15432  3.87%
PR (PR60, PR70) 15329  3.84%
MS (MS60-MS70) 15235  3.82%
Incuse 14498  3.64%
Coin drop 14219  3.57%
High Relief 14147  3.55%
Reverse Cameo 13762  3.45%
Obverse or Face side 13452  3.37%