colorful aquatint on paper dimensions: 37,5 x 35 cm signed lower left "Kupka"   Verso Kupka's drawing study of the painting Soul of Lotus (collection of the National Gallery in Prague) around 1898 pencil on paper 37,5 x 35 cm   Provenance: -  Eugenie Kupka collection - Andreé Martinel – Kupka collection (stepdaughter of painter) - significant private collection Bordeaux    Exhibited.  Publicated.     Confirmation of the authenticity by Vladimír Lekes, the main author of the Catalogue Raisonne  by Frantisek Kupka and the Copyright Holder attached. Consulted with Professor Jaromir Zemina, Dr Jiri Machalicky and Aneta Kopecka.