Ernst Barlach, Ein selbsterzähltes Leben, Munich, 1948, illustration of another cast pl. 86
Bertolt Brecht, 'Notizen zur Barlach-Ausstellung', in Sinn und Form, Berlin, 1952, vol. 7, no. 4, illustration of another cast, p. 184
Friedrich Schult, Ernst Barlach, Das plastische Werk, Hamburg, 1960, no. 473, illustration of another cast p. 246
Friedrich Dross (ed.), Ernst Barlach, Die Briefe II, 1925-1938, Munich, 1969, illustration of another cast p. 859 
Carl Dietrich Carls, Ernst Barlach, London, 1969, illustrations of another cast pp. 193-94
Elisabeth Laur, Ernst Barlach, Das plastische Werk, Güstrow, 2006, no. 600, illustration of another cast p. 265

The bronze is sound. Apart from a few light surface scratches and very minor general wear and surface dirt in places, consistent with age and handling, and some small areas of verdigris (mainly between the figure's feet and around the elbows), this work is in overall good condition. Please note that the patina is not original.
"In response to your inquiry, we are pleased to provide you with a general report of the condition of the property described above. Since we are not professional conservators or restorers, we urge you to consult with a restorer or conservator of your choice who will be better able to provide a detailed, professional report. Prospective buyers should inspect each lot to satisfy themselves as to condition and must understand that any statement made by Sotheby's is merely a subjective, qualified opinion. Prospective buyers should also refer to any Important Notices regarding this sale, which are printed in the Sale Catalogue.
NOTWITHSTANDING THIS REPORT OR ANY DISCUSSIONS CONCERNING A LOT, ALL LOTS ARE OFFERED AND SOLD AS IS" IN ACCORDANCE WITH THE CONDITIONS OF BUSINESS PRINTED IN THE SALE CATALOGUE."

The authenticity of this work has been confirmed by the Ernst Barlach Lizenzverwaltung Ratzeburg.