Acronyms, Abbreviations, and Initialisms.
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The meaning of the Acronym AU-55 is...

AU-55 is

  • Choice Almost Uncirculated (coin grade)

AU-55 is also in:

Acronym Definition Searched: BBG Mother Of All .... PROG 47965 NVC ALIEN TITS PLDC JKDDC FEORP 40979 48897 WIR IPBA FD