National String Instrument Corporation

National String Instrument Corporation
Name	National String Instrument Corporation
Industry	Musical instruments
Founded	1927
Founder	John Dopyera; George Beauchamp
Headquarters	Los Angeles, California
Products	Resonator guitars, metal-bodied instruments, amplifiers
Fate	Merged into Dobro Manufacturing Company (later National-Dobro)

National String Instrument Corporation was an American manufacturer established in 1927 that pioneered resonator guitars and metal-bodied stringed instruments. The company emerged from collaborations among inventors and entrepreneurs in Los Angeles and became influential in blues, country, jazz, and Hawaiian music. Its work intersected with contemporary firms and figures in the early 20th-century American music industry and instrument manufacturing.

History

National String Instrument Corporation was founded in 1927 by a group including John Dopyera and George Beauchamp following disputes with the Dobro enterprise and other regional manufacturers. The company operated within the Los Angeles musical instrument cluster alongside firms such as Rickenbacker, Gibson Guitar Corporation, and Fender Musical Instruments Corporation. Early legal and commercial contests over resonator patents involved the Dopyera brothers, the National Dobro Corporation, and litigants like Victor Talking Machine Company in an era shaped by Vaudeville touring and the rise of radio broadcasting networks. National's corporate trajectory included reorganization and eventual consolidation with related entities during the Great Depression and wartime production shifts involving suppliers from California, New Jersey, and Chicago workshops.

Products and Innovations

National's original innovation was the metal-bodied resonator guitar design that amplified acoustic sound mechanically using spun metal cones. The company produced tricone resonators featuring three aluminum cones arranged in a spider-like configuration, a solution that competed with single-cone designs developed by rivals such as Dobro and influenced by the acoustical research of instrument makers like Lloyd Loar. National also introduced single-cone biscuit-bridge resonators and experimented with lap steel guitars used by performers from Hawaiian music ensembles to early Country music bands. The firm patented components and manufacturing techniques that intersected with technologies employed by Gretsch and Harmony Company for metalwork and finishing. National-designed resonators were adopted by artists affiliated with labels such as Columbia Records, Vocalion Records, and Okeh Records for recordings in the 1920s and 1930s.

Manufacturing and Materials

National's production emphasized spun aluminum cones, brass and steel bodies, and nickel plating processes aligned with industrial suppliers in Los Angeles County and the San Fernando Valley. Metalworking techniques drew on practices from automotive and aviation subcontractors, while decorative treatments referenced sheet-metal work prevalent in Art Deco era instrument aesthetics. The company sourced strings and fittings from vendors like D'Addario-era suppliers and classical-guitar bridges influenced by European makers in Madrid and Milan. Quality control blended hand-fitting by luthiers trained around workshops near Hollywood with mechanized stamping and machining similar to methods used by National Cash Register-era manufacturers.

Notable Models and Serial Numbers

Prominent models produced by National included the tricone models often identified by model designations and serial blocks that interest collectors and historians. Early tricone instruments carry serial numbers traceable to production runs in 1927–1934, while later single-cone and biscuit-bridge instruments followed serial conventions that researchers compare with catalogs from Weaver and trade listings in periodicals like The Talking Machine World. Iconic instruments include those associated with recording artists on labels such as Paramount Records and ARC Records, and surviving examples are preserved in collections at institutions like the Smithsonian Institution and regional museums in California and Tennessee.

Company Leadership and Ownership

Leadership at National featured inventors-entrepreneurs and business managers drawn from the Southern California music trade. Founders and executives had connections with the Dopyera family, and leadership changes reflected broader consolidation patterns seen in contemporaneous firms including Gibson and Kay Musical Instrument Company. Ownership disputes and reorganizations brought legal counsel and financiers from Los Angeles and New York, with alliances occasionally involving distributors who worked with retailers like Mills Novelty Company and chain stores that stocked instruments alongside phonographs by Victor and amplifiers by early Fender.

Impact on Music and Culture

National resonator instruments played a formative role in the development of Delta blues, Piedmont blues, and Western swing, influencing performers who recorded with labels such as OKeh Records and Vocalion. Slide and lap steel techniques popularized by musicians in Hawaii and the American South were amplified by National designs, shaping styles adopted by artists who performed on Grand Ole Opry broadcasts and in Tin Pan Alley-era venues. The unique timbre of National resonators informed arrangements in jazz sessions alongside horn sections typical of Savoy Ballroom and recording sessions in studios in New York City and Los Angeles.

Legacy and Collectability

National instruments are highly sought by collectors, historians, and performing musicians, with surviving examples commanding attention at auctions and exhibitions curated by institutions such as the Metropolitan Museum of Art and private collections associated with the Delta Blues Museum. Discographies and catalogs produced by scholars trace serial numbers and provenance, while modern luthiers and boutique manufacturers have revived and reinterpreted National designs, collaborating with workshops influenced by makers like Tommy Emmanuel-endorsed builders and boutique firms in Nashville. The brand's legacy persists in contemporary reissues and the continuing study of early American popular music and instrument technology.

Category:Musical instrument manufacturers of the United States Category:Guitar manufacturing companies of the United States