[MAG]

From Post #22
"Actually I have never seen or heard of Ford identification stamped on the parts, however the Briggs logo is sometimes found on 1931 slant windshield fordor parts which also have solid D nuts, not the cage D nuts (found on Murray)."
For what it is worth....
Picture is close-up of Briggs stamp on the rear subrail between the bolt holes for the rear spare tire carrier on '31 Slant TS.