Coin Terminology and Glossary

The Coin Collecting Dictionary includes 546 titles used widely in the coin collectors community, and has received over 1151443 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) 56333  13.15%
Silver Clad 33197  7.75%
Coin Silver 25289  5.90%
Slabbed Coins 24216  5.65%
BN 23741  5.54%
Encapsulated Coin 22691  5.30%
RB 22206  5.18%
PF (PF60, PF70) 19193  4.48%
Deep Cameo (DC or DCAM) 19085  4.45%
Reeded Edge 18016  4.20%
Ultra Cameo (UCAM) 17795  4.15%
PR (PR60, PR70) 17224  4.02%
Obverse or Face side 17211  4.02%
Rarity 17129  4.00%
PQ 16736  3.91%
MS (MS60-MS70) 16394  3.83%
Incuse 15777  3.68%
Coin drop 15662  3.66%
High Relief 15393  3.59%
Reverse Cameo 15152  3.54%