German beer Mug"(1904-to current date)"

Hi
Everyone.
I have this German beer mug, pretty same average time at my previous post.Don't much about, not a specialist on German mug, i found an interresting web site on beer steins mark, after aghcollect solve my german mug first post, and look like this kind of mark under the lid was use from 1904 to current date, well just by looking this one, glass quality, some wear here and there, date this one around 1950-60.
This beer steins stand 6 inch tall on a 4 inch base and 3 inch top opening.

Thanks for Viewing
Alan