Coin Terminology and Glossary

The Coin Collecting Dictionary includes 546 titles used widely in the coin collectors community, and has received over 1139576 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) 56203  13.19%
Silver Clad 33084  7.76%
Coin Silver 25178  5.91%
Slabbed Coins 24094  5.65%
BN 23634  5.55%
Encapsulated Coin 22581  5.30%
RB 22093  5.18%
PF (PF60, PF70) 19076  4.48%
Deep Cameo (DC or DCAM) 18994  4.46%
Reeded Edge 17900  4.20%
Ultra Cameo (UCAM) 17692  4.15%
Obverse or Face side 17112  4.02%
PR (PR60, PR70) 17108  4.01%
Rarity 16995  3.99%
PQ 16627  3.90%
MS (MS60-MS70) 16301  3.82%
Incuse 15663  3.68%
Coin drop 15530  3.64%
High Relief 15275  3.58%
Reverse Cameo 15032  3.53%