This Martz and Remy stein is most likely a souvenir stein commemorating the Hamburg Rathaus- which is the city hall of Hamburg Germany. It is the seat of government and was constructed in its present form between 1886-1897. The back stamp on this stein dates the production of this stein between 1879-1964. The back stamp mark changed after 1964 so the youngest this stein is 50 years old. It is a small stein most likely .25 l but not marked. Measures 6" tall and a base of 2 ½" .