Auction catalog Sammlung Carl Roettgen, Auktion 1912. Permanent URL https://www.proveana.de/en/link/lit10000214 last updated 30.07.2020 Show sources Hide sources Basic information Basic information Bibliographical reference Sammlung Carl Roettgen, Aukt.-Kat., hg. Kunsthaus Lempertz, Köln 1912. Language of publication deutsch References References Research projects Project reference Retrospective cataloging of the auction catalogs from the library holdings of the LVR-LandesMuseum Bonn