Coin Terminology and Glossary

The Coin Collecting Dictionary includes 546 titles used widely in the coin collectors community, and has received over 993160 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) 54885  13.73%
Silver Clad 31885  7.97%
Coin Silver 23960  5.99%
Slabbed Coins 22865  5.72%
BN 22425  5.61%
Encapsulated Coin 21528  5.38%
RB 20832  5.21%
Deep Cameo (DC or DCAM) 17968  4.49%
PF (PF60, PF70) 17654  4.42%
Reeded Edge 16722  4.18%
Ultra Cameo (UCAM) 16640  4.16%
PQ 15491  3.87%
Rarity 15485  3.87%
PR (PR60, PR70) 15375  3.85%
MS (MS60-MS70) 15267  3.82%
Incuse 14542  3.64%
Coin drop 14257  3.57%
High Relief 14185  3.55%
Reverse Cameo 13816  3.46%
Obverse or Face side 13495  3.38%