Innenwelt der Edelsteine
- 233 pages
- 9 hours of reading
Eduard Josef Gübelin Books
March 16, 1913 – March 15, 2005
Bildatlas der Einschlüsse in Edelsteinen
- 532 pages
- 19 hours of reading
Schmuck- und Edelsteine aus aller Welt
- 144 pages
- 6 hours of reading
