Vintage 60s Schoxbrau Vilsbiburg German Stoneware Beer Mug Stein

Large 1 Liter stoneware beer mug - grey with Schoxbrau Vilsbiburg and what I think is SKeh in a circle above it all in blue. It also has 1L with a fill line above the printing. Approx 7 1/2" high, 3 3/4" diameter, 3 1/2" opening. A solid piece with some heft - no chips or cracks but there are a few glaze imperfections and marks from age.