Coin Terminology and Glossary

The Coin Collecting Dictionary includes 546 titles used widely in the coin collectors community, and has received over 1137306 search inquires.

Selected title: Mylare
Explanation: A clear trademark polyester material used to store coins; This commonly refers to a holder made from cardboard which has two coin-sized holes cut out in a particular denomination. The holes are covered with a plastic film (mylar). A coin is placed in one cut out aread and the cardboard is folded in half, allowing both sides of the coin to be seen through the plastic film. The cardboard is usually held together by staples or glue (as with pre-glued mylars). Mylar film is used because it has no known chemicals which may cause damage to coins, however, a coin may become toned from chemicals which are found in some staples, gum, or tape.

Most popular coin titles

DefinitionSearchesPercentage
Specimen Proof (SP-70 or PF-70) 56187  13.19%
Silver Clad 33068  7.77%
Coin Silver 25156  5.91%
Slabbed Coins 24080  5.65%
BN 23615  5.55%
Encapsulated Coin 22563  5.30%
RB 22073  5.18%
PF (PF60, PF70) 19063  4.48%
Deep Cameo (DC or DCAM) 18987  4.46%
Reeded Edge 17884  4.20%
Ultra Cameo (UCAM) 17680  4.15%
Obverse or Face side 17096  4.01%
PR (PR60, PR70) 17087  4.01%
Rarity 16975  3.99%
PQ 16610  3.90%
MS (MS60-MS70) 16293  3.83%
Incuse 15642  3.67%
Coin drop 15508  3.64%
High Relief 15258  3.58%
Reverse Cameo 15012  3.53%