Renowned Dutch art dealer (1857-1891) widely remembered for the significant emotional and financial support of his older brother Vincent van Gogh. Exceedingly rare untranslated ALS in French, signed “T. Van Gogh,” one page, 5.5 x 8.25, no date. Letter to French art critic and poet Albert Aurier, the only journalist to publish an article about Vincent van Gogh during his lifetime. Theo and Albert were trying to arrange a meeting shortly after Vincent’s death so that they could organize an exhibition and text for an exhibition catalog. The project never came to fruition, as Theo died just six months after his brother. In fine condition. An extraordinary association between Vincent van Gogh’s greatest proponents.