Tangible Media: Removable Storage of Image, Sound, Motion and Data
Tangible Media: Removable Storage of Image, Sound, Motion and Data
Tangible Media: Removable Storage of Image, Sound, Motion and Data
Magnetization
Telegraphone

Date:

1900s–1910s

Material:

Steel wire, steel reel

Dimensions:

Spool 5½ × 1¾ in. (140 × 44 mm)

Company:

American Telegraphone Co.

Location:

Washington, D.C.
Julius Weinberger via Wikimedia Commons

"Commercial Possibilities of the Poulsen Telegraphone" (PDF) A marketing brochure with testimonials and suggested uses. Testimonials include Lord Kelvin, Marconni and Tesla, amoung others.

"Telegraphone of the wire type, for ordinary office use on the desk or in connection with the telephone." (Page 16 of the above brochure)
"Telegraphone recording telephone conversation." (Page 18)
"Disc style of Telegraphone, for home and office use. Magnet shown on top of box, for instantaneously wiping record off the disc." (Page 20) The disc version was