Proofed in 1909 and in about 4 years M. Orgis, Ferlach along with Carl Bittiner of Liege, Gustav Bittner of Weipert & F.A. Klett were authorized outlets for Gebrder Bhler's Antint rostsicher. I suspect that Spezialstahl & Blitzstahl were sourced from the same mechanics for a time.
The datastring you give on the lower rib is the inital pass or preliminary datastring: 4022.09.150 15.1 11.7
House number.year.tube diameter.tube diameter.lower tube diameter. I think the 11.7 to actually be a 11.1(or was it in the final state of 11.7mm) and the decimals between the 15.0 & 15.1 should be at the top. I assume the diameters are for left and right, but that is just a guess. What are the final pass number adjacent to the flats?
Kind Regards,
Raimey
rse
