MIP Mint in Package
MIU Made in USA
MM Merry Miniatures (Hallmark)
MMA Metropolitan Museum of Art
MNB Mint - No Box
MNH Mint Never Hinged (stamps)
MOC Mint on Card
MOMAMuseum of Modern Art
MOMCMint on Mint Card
MONMCMint on Near Mint Card
MOP Mother of Pearl
MOTU Masters of the Universe
MS Mint State (coins) - usually followed by a number from 65 to 70, i.e. `MS65" or "MS-65"
MWBMTMint With Both Mint Tags
MWBT Mint With Both Tags
MWBTMMint With Both Tags Mint
MYS Mystery (books / movies)
MWMT Mint With Mint Tags
N/R No Reserve
NAP Not Affected Play (records)
NASB Nancy Ann Story Book
NDSR No Dents Scratches or Rust (tins)
NIB New in Box
NORES No Reserve
NOS New Old Stock
NP Not Packaged
NR No Reserve
NRFB Never Removed from Box
NRMNTNear Mint
NWT New With Tags
O New Orleans Mint
O/C On Canvas (paintings)
OB Original Box
OC Off CenterOff Cut
OEM Original Equipment Manufacturer
OF Original Finish
OOAK One of A Kind
OOP Out of PackageOut of PrintOut of Production
OP Out of Print
P Poor ConditionPhiladelphia Mint (coins)
PBO Paperback Original
PC Poor ConditionPost Card
PD Picture Disc
PF Proof Coin
PIC Picture
P/O Punch-Out (inventory that has been "de-classified" with a hole punch)
PM Post Mark / Postal Markings(post cards; first day covers)
POC Pencil On Cover
POPS Promo Only Picture Sleeve
POTF Power of the Force (Star Wars)
PR Poor Condition
PROOFProof Coin
PS Power Supply
R Reprint
RET Retired
RETRD Retired
RFC Right Side of Front Cover
RFDO Removed For Display Only
RI Reissue (records)
ROM Romantic (books)
ROTJ Return of the Jedi (Star Wars)
RRH Remade/Repainted/Haired
RS RhinestonesRubber Stamped on Label (records)
RSP Rhodium Sterling Plate
RT Right
S SmallStereo (records)San Francisco Mint (coins)
S/O Sold Out
S/S Still SealedSingle Sheet (stamps)
SB Soft Bound (referring to soft large bound books)
SC Slight Crease(hang tags, books, magazines)
SCI Science (books)
SCR Scratch
SCU Scuff (records)
SF Science Fiction
SFBC Science Fiction Book Club(sometimes the true 1st edition)
SIG Signature
SLD Sealed
SLT Slight
SR Slight Ring Wear
SS Stainless Steel
ST Star TrekSterling
STER Sterling
STNG Star Trek the Next Generation
SUSP SuspendedSuspense (books)
SLW Straight Leg Walker (dolls)
SOL Sticker on Label (records)
STCCG Star Trek Collectable Card Game
SW Slight WearStar Wars
SWCCGStar Wars Collectable Card Game
SWCS Star Wars Collector Series (toys)
TM Trademark
TMOL Tape Mark on Label (records)
TOBC Top of Back cover
TOFC Top of Front Cover
TOL Tear on Label (records)
TOONS Cartoon Art (paperbacks)
TOS Tape on Spine
TOUGH Tough Guy Genre (paperbacks)
UB Undivided Back (post cards)
UNC Un-circulated (coins)
URFC Upper Right Corner of Front Cover