The Singer Manufacturing Company.
List of parts for series S59R and S69R resilient mounted electric transmitters. Form 19973 (747)
R594414. List of parts for series S59R and S69R resilient mounted electric transmitters. Form 19973 (747) By The Singer Manufacturing Company. NM: new plates. © 11Dec47; AA70605. The Singer Company (PWH); 2Jan75; R594414.
The Singer Company|PWH