This OD found me today. Best I can figure it is from about 1938, ser # 533XX. The grips do not #, but I guess they are period correct. Anyway they have the concave washers. Gun appears to have been fired very little, but carried some. There is a bit of holster wear at the muzzle & a very slight turn ring. Probably a very high shooter grade. When it gets outa jail I will clean it up & get some better pics. I was actually looking for a post-war, but I guess this will have to do. What you think?