Author
Christie, Manson & Woods
10
Sotheby Parke Bernet and Co
7
Sotheby's
6
Cranach, Lucas
5
Dodgson, Campbell
3
Heydenreich, Gunnar
3
Rowlands, John
3
Sotheby and Co
3
Waagen, Gustav Friedrich
3
Brinkmann, Bodo
2
Levey, Michael
2
Phillips, Son & Neale
2
Albertina
1
Altdorfer, Albrecht
1
Andersson, Christiane
1
Assmann, Peter
1
Astor, Michael
1
Balston, Thomas
1
Bayerische Staatsgemäldesammlungen
1
Beit, Alfred
1
Bernheimer, Konrad O.
1
Bock, Elfried
1
Bogh, Mikkel
1
Bott, Gerhard
1
British Museum
1
British Museum Department of Prints and Drawings
1
Bugler, Caroline
1
Burke, Jill
1
Campbell, Caroline
1
Campbell, Stephen John
1
Chapuis, Julien
1
Christopher Mendez
1
Clark, Kenneth
1
Cooper, Douglas
1
Cranach, Lucas der Ältere
1
De Pauw, Charles
1
Edwards, Nancy E.
1
Eissenhauer, Michael
1
Fałkowski, Wojciech
1
Fenyö, István
1
Fenyö, Iván
1
Foister, Susan
1
Friedländer, Max J.
1
Fuhring, Peter
1
Geisberg, Max
1
Haddington, George Baillie-Hamilton Earl of
1
Harries, Richard
1
Held, Julius S.
1
Helfenstein, Josef
1
Herrmann, Frank
1
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