Please help me value this Winchester Model 1892|Winchester Rifles|Forum|Winchester Collector

I have a Winchester Model 1892, saddle ring carbine, serial number 657,123, chambered in .32 WCF (.32-20). It was built in 1912. The rifle is in mechanically “fine” condition. The action is smooth and locks up tight. The screw heads are not buggered, indicating it has not been disassembled, or if it has someone took care to use proper sized hollow-ground screwdrivers. The proof marks and the roll stampings are consistent in location and type with the date of manufacture, so the gun is probably original (no replacement parts). The barrel could use a good cleaning and is perhaps a bit frosted, but otherwise good. The rifling is clearly visible. The stocks, likely gumwood, show their age, but are not gouged or otherwise abused.  The metal has lost its color from the original case hardening, but shows a decent patina. 

This firearm was handed down to me from my father, who was born in 1920. Most likely, it was handed down to him from my grandfather. Unfortunately, my father etched his SSN on both sides of the receiver. I know this defacement will decrease the value of the rifle, but I would like opinions on a fair price.

Thanks in advance.