Quoted:
I think you need to use the Antique scale on this gun, don't you? Because the amount of original finish left doesn't tell the whole story on this rifle/carbine. I'd be thinking "Very Good" or "Good" (I'm not a Winchester expert, to the replaced parts component of the condition is a tough one for me here). From the NRA Museum website:
NRA Museum Firearms Condition Guide
NRA ANTIQUE FIREARM CONDITIONS STANDARDS:
•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 re-blued; principal letters, 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 re-blued; 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 collector's firearm.
Rob