Wikidata:WikiProject sum of all paintings/Creator/Frans Hals - Wikidata
Wikidata:WikiProject sum of all paintings/Catalog/Frans Hals catalog raisonné, 1923 - Wikidata
Simon Oppenheim - Wikidata
Glockengasse 3 - Wikidata
On Divination in Ancient Babylonia
OMNIA - Leopold
File:Artist(s) Unknown, possibly Master of the Madonna Grog or Aert van den Bossche, formerly Master of the Embroidered Foliage - Virgin and Child in a Landscape - 90.7 - Minneapolis Institute of Arts.jpg - Wikipedia
Albert von Oppenheim
Rome Samizdat
Altruistic World Online Library • View topic - Neuschwanstein: A fairy tale darling's dark Nazi past
Collection du baron Albert Oppenheim, tableaux et objets d'art : Molinier, Emile, 1857-1906 : Free Download, Borrow, and Streaming : Internet Archive
G17:00 GeoQuery: Wikipedia: Geolocated Wikipedia articles, downloaded 2015-08 near Addis Ababa, Adis Abeba Astedader, Ethiopia Latitude 9.0116 Longitude 38.7344