MARIE CURIE, SIGNED
1923 RADIUM CERTIFICATE

A signed “Institut Du Radium” document by Marie Curie, dated June 15, 1923. Within this document, the two-time Nobel Prize laureate measures “Dosage of Mesothorium by Gamma Ray” and states that “the [radio] active material contained in this apparatus is mesothorium, also perhaps within a certain quantity of radium.” The certificate also includes details regarding the apparatus tested and what methods were used.

Items connected to Marie Curie’s experiments in radiation are indeed very sought-after.

Size: Approximately 8,5 x 11 inches / 22 x 32 cm.

Condition: Very good condition.

Provenance: Letter of Authenticity from JSA. Letter of Authenticity from Alexander Bitar History.