Hubertus, the patron sankt of the hunter, was the trademark of Immann(Immanuel) Meffert, who founded his firm in 1839. The proof date looks to be October of 1935 with both tubes choked and proofed for/designed for shot. During the period this example was made in the 1930s, Meffert was churning out say 1000 examples per year. Justin, son of Immann Meffert, made an executive decision that the firm could turn out 3 standard quality longarms in the time it took to make a highend longarm. In 1930 the Meffert firm offered a light double using only steel parts with some more or less in a skeleton fashion. Then a more robust Dural/aluminum was discovered and the result was the Dural/lightweight drilling. Times were tough in the mid 1930s and these tubes wear an older Krupp crossed cannons trademark. Being Krupp and along with what looks to be a "Caveman" with a "Staff" on the underside of the right tube below the "Crown" over "U" points that the tubes were sourced from Sauer. Tight chambered 16 being a A&D with lower scears. I'm not sure why the "German Craftsmen of Suhl" or "German Workers of Suhl" is below "Hubertus" but this isn't the 1st time I've seen it. Maybe something to do with export? If there isn't a "70" on the extractor, the chambers will be 65mm.

Kind Regards,

Raimey
rse