Atlantic Telegraph Cable Souvenir, 1873

Telecommunications

1873-1920

Plaster of paris relief plaque of Maimonides

Wellcome (general)

1958

Relief plaque of Imhotep by Doris Appel, paster of paris, 1958

Wellcome (general)

1958

Doll lying in bed to demonstrate medical treatment to children, England, 1930-1950

Orthopaedics

1930-1950

Artificial bubble horizon.

Astronomy

1905-1910

Edison's electrolytic A-H. meter?

Electricity Supply