- TitleCopy als on the photophone as a telegraphic instrument
- ReferenceUK0108 SC MSS 009/1/20
- Date1882-03-10
- Scope and ContentLetter to The Electrician, with reference to the photophone in Moigno, Traite de Telegraphie Electrique.
- Physical descriptionNumber of pieces: 1
- LanguageEnglish.
- SubjectPhotophones
- Conditions governing accessOpen access
- Level of descriptionfile
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