US Zone post WWII pair of cups/leather set

Vintage Post WWII US Zone Germany Rumpp Portable 2 Cup Set in leather snap shut case. Case measures approximately 4 inches tall and 3.25 inches in top diameter. The bottom diameter is 2.5 inches. Condition is "Used". The cups have some wear and oxidation. The leather case has scuffs, scapes, scratches and minor tears throughout. (See photos for details and condition). The US occupation if this Zone in Germany lasted from approximately 1945-1952. Preowned item being offered as is.