Made in 1939 with the tubes having a diameter of 15.5mm and 15.3mm on the 1st pass. Components were sourced from the Consortium/Cooperative which was founded in 1885. Nice A&D boxlock with Boehler tube steel. Not sure on the encircled M, maybe a Mischitz or Michelitsch.

Genossenschafts Maschienenhaus/Maschinenhaus der Büchsenmacher
http://www.doublegunshop.com/forums/ubbthreads.php?ubb=showflat&Number=257941

Kind Regards,

Raimey
rse