Coin Terminology and Glossary

The Coin Collecting Dictionary includes 546 titles used widely in the coin collectors community, and has received over 958716 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) 54564  13.87%
Silver Clad 31613  8.03%
Coin Silver 23698  6.02%
Slabbed Coins 22560  5.73%
BN 22101  5.62%
Encapsulated Coin 21290  5.41%
RB 20483  5.21%
Deep Cameo (DC or DCAM) 17709  4.50%
PF (PF60, PF70) 17345  4.41%
Reeded Edge 16443  4.18%
Ultra Cameo (UCAM) 16397  4.17%
PQ 15227  3.87%
Rarity 15124  3.84%
PR (PR60, PR70) 15070  3.83%
MS (MS60-MS70) 15008  3.81%
Incuse 14226  3.62%
Coin drop 13959  3.55%
High Relief 13915  3.54%
Reverse Cameo 13488  3.43%
Obverse or Face side 13207  3.36%