Walter Müller, Mould #153, R/H side.
Cast mark on the underside of the lid on the featured stein. 
1/2 litre. stein manufactured by Walter Müller, Mould #153. Designed by W. NeidhartDated 1908 - 1912 
Basemark Walter Müller #153. 
Walter Müller, Mould #153, L/H side. 
Underside marking on a lid of another stein. 