i have inherited a s&w top break pistol. i would like to know as much info on this as possible.on the barrel it is engraved with 38 cal s&w CTGE.the cylinder has 88 stanped on the top.the number stamped on the bottom is 103088 . it has three screwa on the left side and one screw in the butt handle. it has a permanent front and rear sight.my uncle was a pilot in WW11. Could this have been his service weapon? also, how much is it worth? thank you