When's the date for the next Parramatta Fair?
What is the difference between MOSC (mint on sealed card) and MISB (mint in standard box)?
"Save the rebellion! Save the dream!" - Saw Gerrera
MISB is a *sealed* box. Both terms mean the same thing, an unopened toy, it's just that some toys are on a backing card (eg deluxes, legions) and some in boxes (voyagers, leaders).
Some people use MISP (mint in sealed package) to cover both, and some (like me) use the two different terms to be overly accurate.