Based on some of what I've seen: 
Overall Condition
MINT: Factory new, all original.
MINTY: Same as above, except for the scattered pitting.
GOOD FOR ITS AGE: NRA poor to horrible.
SHOWS HONEST USE: A piece of junk.
SHOWS WEAR & USE: What is not worn paper thin is missing or broken.
GOOD REPRESENTATIVE PIECE: Almost looks like a gun.
ROUGH CONDITION: The outline of this rustball looks like it might have been a gun.
LOTS OF ORIGINAL FINISH: Two screw heads show some blue.
SOME ORIGINAL FINISH: One screw head shows some blue.
SMOOTH WEAR: All checkering, edges & lettering gone.
NICE AGE PATINA: Solid coat of rust.
WILL CLEAN UP: Maybe with an industrial wire wheel.
ACTION NEEDS MINOR TUNING: Internal parts broken, missing and can never be made to function again.
NEEDS A LITTLE WORK: Springfield armory at it's peak couldn't repair it.
TIGHT: Amazing what a little epoxy glue can do.
SHOOTABLE: Only if you're suicidal.
NEEDS A LITTLE TIGHTENING: Only one or two major parts have fallen off.
MINOR REPLACEMENT PARTS: The frame & maybe the barrel are original.
HAIRLINE CRACK: Stock split in two pieces.
SMALL CHIP IN STOCK: Nothing supports the barrel.
SMALL WOOD REPAIR: Replaced stock.
MINOR BUMPS & DINGS: The gun has been used as a hammer for at least two generations.
Bore Condition
VERY GOOD BORE: Traces of rifling amid the pitting.
GOOD BORE: The pitting seems to form a pattern.
FAIR BORE: You can still see light through it.
POOR BORE: The dark at the end of the tunnel.
Overall Condition
MINT: Factory new, all original.
MINTY: Same as above, except for the scattered pitting.
GOOD FOR ITS AGE: NRA poor to horrible.
SHOWS HONEST USE: A piece of junk.
SHOWS WEAR & USE: What is not worn paper thin is missing or broken.
GOOD REPRESENTATIVE PIECE: Almost looks like a gun.
ROUGH CONDITION: The outline of this rustball looks like it might have been a gun.
LOTS OF ORIGINAL FINISH: Two screw heads show some blue.
SOME ORIGINAL FINISH: One screw head shows some blue.
SMOOTH WEAR: All checkering, edges & lettering gone.
NICE AGE PATINA: Solid coat of rust.
WILL CLEAN UP: Maybe with an industrial wire wheel.
ACTION NEEDS MINOR TUNING: Internal parts broken, missing and can never be made to function again.
NEEDS A LITTLE WORK: Springfield armory at it's peak couldn't repair it.
TIGHT: Amazing what a little epoxy glue can do.
SHOOTABLE: Only if you're suicidal.
NEEDS A LITTLE TIGHTENING: Only one or two major parts have fallen off.
MINOR REPLACEMENT PARTS: The frame & maybe the barrel are original.
HAIRLINE CRACK: Stock split in two pieces.
SMALL CHIP IN STOCK: Nothing supports the barrel.
SMALL WOOD REPAIR: Replaced stock.
MINOR BUMPS & DINGS: The gun has been used as a hammer for at least two generations.
Bore Condition
VERY GOOD BORE: Traces of rifling amid the pitting.
GOOD BORE: The pitting seems to form a pattern.
FAIR BORE: You can still see light through it.
POOR BORE: The dark at the end of the tunnel.


















































