RKD Speelman

The RKD is an important source of art provenance information. The RKD cuts across data silos to bring together provenance and other information from numerous museums. Below is a search (via Sparql query) for "Speelman", an important art dealing dynasty. Click on the urls to see the complete RKD information as well as, in certain cases, links to the current collection.

(If a link doesn't work, use the RKD ID to find the artwork. Or replace "https://data.rkd.nl/images/" with "https://research.rkd.nl/en/detail/https%3A%2F%2Fdata.rkd.nl%2Fimages%2F" or with the permalink url "https://rkd.nl/images/" )

For more on Speelman, see also posts on The Legacy of Edward Speelman and Edward Speelman and the Toledo Museum of Art and Edward Speelman in America.

Nathan Katz

Who is Nathan Katz?

Nathan Katz: The Hague. Dealer. Sold to all the Germans...
source: Interrogations: Miedl Case (Alois Miedl)Restitution Research Records NARA M1946
https://www.fold3.com/image/270014556

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If one googles Nathan Katz, Wikipedia pages for a  professor and a poet of this name will appear. But if one is searching for the Dutch art dealer, one must look further. Katz is a very common name, and confusion is a problem. In this post we attempt to bring together a few elements to help identify Nathan Katz the art dealer, who owned the  Dutch dealership Firma D. Katz in Dieren, Netherlands.

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Nathan Katz: Art Market Network according to the 1946 Art Looting Investigation Unit Red Flag Names

"Katz, Nathan. The Hague, Lange Voorhuit 35 Dieren, bei Arnhem. Prominent dealer. Worked principally with Hofer, Posse and Miedl, as well as Lange, Haberstock, Boehler and other German buyers. Two brothers in the Western Hemisphere: Benjamin Katz, Hotel Dauphin, New York and Abraham Katz, 18 Pietermaai, Wilhelmstad, Curacao."