''Tennis Von Nestor'', Sport-Verlag 1920, Zurich, Wien, Leipzig, p.p.42 with photographs of players and racquets, with label of Dr. V. Pimmer, Wien, a

''Tennis Von Nestor'', Sport-Verlag 1920, Zurich, Wien, Leipzig, p.p.42 with photographs of players and racquets, with label of Dr. V. Pimmer, Wien, a publishing firm, rare, a copy cannot be traced in the British Library