Then that is a new one on me. The last serial number in 1950 was 56,800. The new serial numbers that started with S began in 1946 at FW S1.
If you could, post a few close-up pictures of the barrels water table, the receiver, and top of barrels. If you do not know how send them to my email address jdw110@live.com
This gun should have the high rib or what they called Single Sighting Plane rib.
This is very interesting.
Also I did look at the new Records book that was recently put out, and they did make some Field Grades with 28 1/4" barrels and some with 28 1/2" but none 29 3/4". Hopefully yours were 30" and you will still have choke, if 32" originally you would just have a slight taper.
