From what I can see, it would bring $250-325 in my end of the Ozarks. It does look pretty slick. Check to see if it has a lot of "shake" in the hinge joint and make sure it locks up tight. Also, the S&W .38 is not the modern .38 special.
Welcome to the forums from the Wiregrass! That is a Smith and Wesson 38 double action fourth model top break that shipped around 1902. S&W made so many of these guns that they're not very valuable even in pristine conditions. without the grips, the gun would bring between $100 and $200 here. however, the grips appear to be ivory and are probably worth as much as the gun. So I agree with Scott's valuation.