Gustav Kühn

 https://www.bavarikon.de/search?terms=+Gustav+K%C3%BChn+&termsAdv=&title=&topic=&creator=&location=&time=&identifikator=&metadata=&fulltext=&sort=

&searchType=SIMPLE&lastmod=&collectionid=&idp=&lang=de#search-form-top

 

https://library.nga.gov/discovery/search?query=any,contains,Gustav%20K%C3%BChN&tab=EverythingNoEdu&search_scope=EverythingNoEdu&vid=01NGA_INST:NGA&offset=0

https://search.smb.museum/en?has_images=true&q=Gustav+K%C3%BChn&page=4 

https://lbssbb.gbv.de/DB=1/SET=6/TTL=5/NXT?SET=6 

https://lbssbb.gbv.de/DB=1/SET=6/TTL=5/HIST 

https://provenienz.staatsbibliothek-berlin.de/resources/?lang=en 

https://nat.museum-digital.de/objects?tag_id=8400 

https://nat.museum-digital.de/object/774886 

https://nat.museum-digital.de/objects?s=tag%3A13314&section=results_list&mode=grid&startwert=94656