Dictaphone tubes

Dictaphone tubes belonging to A.V.Hill based on the original Eddison phonograph. With black wax cylinders, moulded into hollow tubes, used for recording: some of which may contain dictation by Hill. Cylinders in cylindrical cardboard boxes.

One of three cylinders: "Thomas A Edison Incorporated, West Orange, NY"

wax, cardboard

Hill, A.V., Eddison

Physio

LDUSC-PHYSIO-34

PHY342, 34

UCL Science and Engineering Collections