Does anyone know who made this?

[md1919]

without a makers mark it is impossible to say who made it.

[jaylynn2012]

maybe this will help

[argon38]

I'm pretty sure 0,5L is merely the capacity in litres, not a maker's mark. The partly-visible text reads: "Hopfen und Malz, Gott erhalt's"  (Hops and malt, may God preserve them), a traditional German toast that appears on about a zillion other steins.