[ Shelford Bidwell, physicist and inventor whose 'telephotography' was a precursor to the modern fax. ] Autograph Letter Signed to 'Mr. Henslow', requesting a 'distant room' for a demonstration of 'an experimental telephone'.

2pp., 12mo. In fair condition, lightly aged. He thanks him for his note, adding: 'I think perhaps it will be better to clear the platform as the apparatus will then be more easily seen. I should be glad if possible to have the use of a distant room in the building to which I could run an experimental telephone wire. The room may of course be a very small one.'