Ruger 77/50 Officers Model

I have one in 95% condition. Walnut stock, straight pistol grip and checkering. It is blued. First year production with manual and tools but no box. I am going to sell it but have no idea what it may be worth as I cannot find others which have sold here. If someone can give me an idea of price in US dollars I can do the math.
Thanks guys for your help. David

Not the same model but as desireable if not more so...I had a nib stainless laminate 77/50 that had a few extras included like extra breech plugs , etc. and recently took $400 for it. I probably could have gotten a little bit more for it but sold it to a friend who is really into muzzleloader hunting. I think they were good rifles but never were all that popular for whatever reason.