Coin Terminology and Glossary

The Coin Collecting Dictionary includes 546 titles used widely in the coin collectors community, and has received over 961592 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) 54609  13.85%
Silver Clad 31650  8.03%
Coin Silver 23729  6.02%
Slabbed Coins 22592  5.73%
BN 22129  5.61%
Encapsulated Coin 21319  5.41%
RB 20515  5.20%
Deep Cameo (DC or DCAM) 17751  4.50%
PF (PF60, PF70) 17379  4.41%
Reeded Edge 16477  4.18%
Ultra Cameo (UCAM) 16425  4.17%
PQ 15263  3.87%
Rarity 15166  3.85%
PR (PR60, PR70) 15104  3.83%
MS (MS60-MS70) 15048  3.82%
Incuse 14257  3.62%
Coin drop 14007  3.55%
High Relief 13946  3.54%
Reverse Cameo 13527  3.43%
Obverse or Face side 13247  3.36%