Auction 1 - Numismatisches Antiquariat Lang
Literature dealing with Ancient, Medieval and Modern Numismatics, Journals, Festschriften and Auction Catalogues
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Auktionskataloge. Hamburger, Leo, Frankfurt a.M. Auktion 56 vom 24.09.1913.
Slg. Uhrmacher. Mittelalter, Neuzeit, bes. Braunschweig, Köln. Nrn. 1000 - 2141 [komplett], 17 Tfn. Ganzleinen.