Vintage Erstes Kulmbacher Beer Stein with Crown Mark

This is a vintage clear glass beer stein marked with a crown and what looks like SG in the logo. It is etched on the side 0.3L and has and enameled picture that says Erstes Kulmbacher with a man in traditional W.German clothing holding a beer stein. It is heavy clear glass and measures 6 and 3/8 inches tall,and 2.75 inches across the bottom. The glass is in very good condition, no chips, no cracks, with just a bit of wear to the picture. The company closed down in 1977 so it is older than that.