After 1972, Aria factories (who produced Yamaha guitars under contract to Yamaha) may have succeeded in gaining some of the Conn business, and may have made several models under contract to Conn (Conn branded). Some sources state that Matsumoku built almost all Conn acoustic guitars after 1972--but this is unsubstantiated. There are few records that exist about Conn's history before 1981 because, according to the Conn-Selmer company, all records of that era "were destroyed". Any and all remaining information, including catalogs and brochures about the former company are in the hands of private individuals. Research into the 9-year Conn guitar history is somewhat inhibited by these limiting factors, and information becomes increasingly difficult to obtain as former employees of that era are aging, and others are either no longer alive, or may not remember. Additional information may be included in various books that are for sale in the open market--many of which have been consulted (but probably not all).