Czech painter and graphic artist (1871-1957) who was a prominent figure in establishing the early phases of the abstract art movement and Orphic cubism. Scarce ALS in French, signed “Kupka,” one page, 7.25 x 4.5, no date. Letter declining an invitation to a meeting due to an illness which will keep him confined to his chaise longue for two to three days. In fine condition, with light soiling to the left side. Accompanied by a commemorative cover honoring Kupka.
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