the singer Manufacturing Company.
List of parts, series S46 and S47 electric transmitters. Form 20335 (548)
R621118. List of parts, series S46 and S47 electric transmitters. Form 20335 (548) By the singer Manufacturing Company. NM: new plates. © 29Oct48; AA98360. The Singer Company (PWH); 15Dec75; R621118.
The Singer Company|PWH