Category: Radionuclides
Estimated Date: 1915
Name: Thomas Cone
Manufacturer: Unknown

Description: The cone is shown with the instructions for a similar device. This radiactive block was inserted into a crock of water and became a radon emanator, generating radioactive water that was thought to have medicinal properties.

Reference 1: 183

Thomas Cone
Radium Emanator, French
Radium Card