We frequently refer to NRA conditions for antique guns. Some people may not be familiar with them. Here they are, so when we talk about a gun in "good" condition, we will all be thinking of the same thing: Condition Standards for Antique Firearms (As defined by the National Rifle Association)
FACTORY NEW- all original parts; 100% original finish; in perfect condition in every respect, inside and out.
EXCELLENT- all original parts; over 80% original finish; sharp lettering, numerals and design on metal and wood; unmarred wood; fine bore.
FINE- all original parts; over 30% original finish; sharp lettering, numerals and design on metal and wood; minor marks in wood, good bore.
VERY GOOD- all original parts; none to 30% original finish; original metal surfaces smooth with all edges sharp; clear lettering, numerals and design on metal; wood slightly scratched or bruised; bore disregarded for collectors firearms.
GOOD- some minor replacement parts; metal smoothly rusted or lightly pitted in places, cleaned or reblued; principal lettering, numerals and design on metal legible; wood refinished, scratched, bruised or minor cracks repaired; in good working order.
FAIR- some major parts replaced; minor replacement parts may be required; metal rusted, may be lightly pitted all over, vigorously cleaned or reblued; rounded edges of metal and wood; principal lettering, numerals and design on metal partly obliterated; wood scratched, bruised, cracked or repaired where broken; in fair working order or can be easily repaired and placed in working order.
POOR- major and minor parts replaced; major replacement parts required and extensive restoration needed; metal deeply pitted; principal lettering, numerals and design obliterated; wood badly scratched, bruised, cracked or broken; mechanically inoperative; generally undesirable as a collectors firearm.