Info needed: price check on Smith and Wesson combat masterpiece

[Tbolt]

Hi All

Someone at my range has put a for sale notice up on our bulletin board.
He has a few prohibs and some other restricted pistols on it.
The one that I am interested in is listed as a Smith and Wesson combat masterpiece in .22lr
No model number but based on the picture that he included in the notice it seems to be a Model 18 with a 4" barrel and the std wood grips.
For all the prohibs he has put make an offer.
The revolver seems to be in great shape with no discernible blemishes.
Call it 85% condition most likely higher.
What would be a fair offer for it?
I have checked around and can't find much in the way of value info so any help would be greatly appreciated.

 

[Auggie Doggie]

I paid $345 for my model 18 no dash a couple of years ago. Has a lot of holster wear, but the bore was excellent and it is mechanically very tight. I wouldn't go over $375 myself.

Auggie D.

 

[tobin]

I sold one earlier this year in vg-exc. condition for $450.