The year 1970 brought still another acquisition, that of the Darco String Company, owned by John D'Addario, Sr., John D'Addario, Jr., and James D'Addario. Another addition in the early '70s was the A. B. Herman Carlson Levin Company of Sweden. Levin made a variety of classic guitars as well as the steel string type. In subsequent years, Vega, Levin and Fibes were spun off; however, the manufacture of Martin and Darco strings remains an integral part of the company.