| Heinrich Kühn The Kühn children in the sunshine 1913 Bromoil print, on Japan paper 30 × 23.9 cm (11 3/4 x 9 3/8 ins) Villa Grisebach Auktionen GmbH - Berlin Auction 311, 27 November 2019, Lot: 2099R LL/94713 Pass marks in pencil in the margin, as well as annotated in pencil in the lower centre by Heinrich Kühn. Laid down on original cardboard (35,3 × 29,2 cm), thereupon annotated in pencil on the reverse by Heinrich Kühn and pass marks. Numbered in pencil by various hands. [2004]
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