Buick
694053, without a V prefix on the serial number, can not be post-WW2; its too early for the S prefix, and therefore it has to be pre-WW2.
Here is a picture comparing the butt serial numbers from 694101 and (S)833957. 694101 is pre-WW2, and (S) 833957 is post-WW2. On this latter gun, the S is not stamped on the butt, but rather on the grip frame. The factory letter, and other pictues I have, confirm this.
You can see the differences in the font styles of the two guns, as well as the height of the dies.
Regards, Mike Priwer