What is the approx value of a Smith and Wesson revolver with SW DA 45 on left of barrel and Smith and Wesson Springfield Mass USA Patented Dec 17 1801 Feb 6 1808 Sep 14 1808 and 140887 on handle base?
The S&W DA45 revolvers were chambered in 45 ACP as they were
made for the war effort and ammo compatability when the 1911 was in
short supply. If your particular specimen does not have "U.S. ARMY
MODEL 1917" marked on the butt then it was a civilian model.
Depending on condition and such, I have seen them bring anywhere
from $250 to $600. Hope this helps...