Star Bonifacio Echeverria was founded in the Eibar region of Spain in 1905. During World War I, they produced clones of Mannlicher and Gabilondo pistols under contract. In the 1920s, they focused development on the Modelo A and B series.
The Modelo A was chambered in 9×23mm Largo (*) while the B model was chambered for the more common 9x19mm for export. While the Spanish military initially adopted the Largo loading, they would later switch to the B model, and the pistol would remain in service there until the 1990s.
The above was shot with the model BM, which is the compact version.