Abbreviation Definition
COACertificate Of Authentication
COLBCoin-Operated-Locker Babies
COPTCoin Operated Pay Telephone
COTVMcoin operated Ticket Vending Machines
CPMCCoin Phone Management Company
CRVCollectors Rating Value
CSCounter Strike
CSDGCalifornia Small Denomination Gold
CVCatalog Value
CWCoin World
DDahlonega, Georgia (mint mark on United States gold coins)
DDenver, Colorado (mint mark on United States coins)
DAICODecentralized Anonymous Initial Coin Offering
DAICODecentralized Autonomous Initial Coin Offerings
DCDeep Cameo
DDDoubled-Die
DDODoubled Die Obverse
DDRDoubled Die Reverse
DECDarico Ecosystem Coin
DLRCDavid Lawrence Rare Coins

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