Horst Janssen, Tulps Anatomie / Tulp's Anatomy, etching Tulp's anatomy. 1958. Etching on paper. Plate 59.6 x 39.7 cm. Signed lower right in pencil: HJ. Inscribed in pencil lower left: P. Gallery labels on the reverse. Framed behind glass in passepartout. Title and description of the work refer to the painting 'The Anatomy of Dr. Tulp' by Rembrandt from the year 1632.