French physicist (1892-1987) known for his theory that matter has the properties of both particles and waves, who was awarded the 1929 Nobel Prize in Physics. Uncommon matte-finish 5 x 7 photo of de Broglie dressed in the green habit of the Academie francaise, signed in fountain pen, "10 Novembre 1947, Louis de Broglie." Also signed in pencil by the photography studio, Otto & Pirou, with the studio's stamp on the reverse. In fine condition.
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