Selected References


  • Albertina Wien
  • National Library Austria
  • British Library
  • British Museum
  • Qatar Foundation
  • Vatican Library
  • State Library Berlin
  • Schwiss National Library
  • Scottish Record Office
  • College of Arms London
  • Louvre Paris
  • Sorbonne Paris
  • Custodia Foundation Paris
  • German National Library
  • German Historical Museum
  • Prussian castles foundation
  • Prussian cultural heritage foundation
  • Städel Frankfurt / Main
  • Griffelkunst Hamburg
  • MAK Wien
  • DTM Berlin
  • Sharjah Museum VAE
  • Estonia National Library
  • Duchess Anna Amalia Library Weimar
  • Havard Museum Cambridge
  • Israel Museum
  • National Gallery Oslo
  • State Archive Bern