Re: Help ID this old WRAC Shotgun
As mentioned by Anchor Clankor, it is a Model 1887. The serial number tells me that it was manufactured in November of 1892.
The pictures you posted show that it has been refinished (a long time ago). As it was originally made, the receiver frame, lever, and hammer were case color hardened (they are now blued).
Also as mentioned, the Model 1887 was made in 12 and 10 gauge (and it will be marked on the top of the barrel near the receiver frame). The 12-gauge guns were chambered for a 2-5/8" shell, and the 10-gauge guns for a 2-7/8" shell, black powder only.
The value of the gun is approximately $750 - $900.
Real Men own and shoot a Winchester SINGLE-SHOT!