The 11×45.5R was listed by Georg Roth as case number 92. The base is typical of the MB style base and the cartridge was produced from approximately 1880 until 1914. Military style headstamps appear on all cases. Various lengths and diameters have been recorded in collections such as lengths of 46.5mm and 11,2mm diameter projectiles.

No 1 was produced by Georg Roth with a segmented case with his monogram and three stars.

No 2 was produced by Georg Roth with segmented headstamp with 1877 date and November production date. The case displays a typical military headstamp related to MB type military cases.

Was also listed as an 11x46R