. . "1920Z"^^ . . "1922Z"^^ . "130"^^ . "The Martin NBS-1 was a military aircraft of the United States Army Air Service and its successor, the Air Corps. An improved version of the Martin MB-1, a scout-bomber built during the final months of World War I, the NBS-1 was ordered under the designation MB-2 and is often referred to as such."@en . "23485.0"^^ .