Hy-Score was an importer in Brooklyn, NY. They used the infamous circle "HS", a rare stamp on a black powder revolver. They imported Spanish as well as Italian made guns in the 50s and 60s. The S.E. Laszlo House of Imports served as the umbrella company for the Hy-Score Arms Corporation. The company originally was located at 25 Lafayette St. in Brooklyn, NY. In October 1965, the firm moved to 200 Tillary Street, Brooklyn, NY, where it remained until Steve Laszlo´s death in 1980. HY-SCORE's main claim to fame was their development and manufacture of a unique series of concentric piston spring air pistols. In 1970, Hy-Score discontinued marketing of the Hy-Score CP air pistols.