Authentic vintage Germany beer stein with pewter top

Authentic old beer stein is stamped on the bottom, Made in Germany, has the mark of an RM inside a large G, and the numbers 4 51, and another oval or 0. Unglazed clay bottom on the stein. Measures 7" tall to the tip of the pewter lid.Various German sights, such as Mittenwald, Garmisch-Partenkirchen, and Oberammergau. Fine detail and perfect condition.