Coin Terminology and Glossary

The Coin Collecting Dictionary includes 546 titles used widely in the coin collectors community, and has received over 1077949 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) 55661  13.46%
Silver Clad 32545  7.87%
Coin Silver 24660  5.96%
Slabbed Coins 23553  5.70%
BN 23128  5.59%
Encapsulated Coin 22116  5.35%
RB 21592  5.22%
Deep Cameo (DC or DCAM) 18584  4.49%
PF (PF60, PF70) 18501  4.47%
Reeded Edge 17403  4.21%
Ultra Cameo (UCAM) 17230  4.17%
PR (PR60, PR70) 16448  3.98%
Rarity 16373  3.96%
PQ 16141  3.90%
MS (MS60-MS70) 15866  3.84%
Incuse 15166  3.67%
Coin drop 14974  3.62%
High Relief 14812  3.58%
Reverse Cameo 14504  3.51%
Obverse or Face side 14227  3.44%