Otto Helbing Nachf. [Munich], October-December 1917, Kahlert, Krämer and Hans Leipen Collections, etc. 282pp, 5437 lots, 42 very fine plates. Original card covers in a separate volume; very fine copies of this rare and important catalogue (£30-50)

This lot was sold as part of a special collection, The Jean-Claude Baudey Numismatic Library.

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