"Hercules and the Lernaean Hydra"
oil sketch on cardboard, framed
53 x 109 cm
Oil sketch for a cycle of four Hercules paintings, now lost.
Estate of the artist; thence by descent in his family in Baden-Württemberg.
Hans H. Hofstätter, "Rudolf Jettmar," Vienna 1984, p. 162, Oil 65, colored illustrations 22; the catalogue raisonne.