Thank you for commenting and sending me helpful information!
List of contributors:

Peter Gresch (USA) - for providing information on "Faiencerie de Thulin" of Belgium

Christoph Messerli (CH) - for his insight & help on Swiss ceramics and his pottery donations

Frédéric Tillard (FR) - for identifying a René Meynial dish

Jean-Pierre Cadot (FR) - for his information on the  work of Ray Camart (Vallauris)

Kevin Bülow (DE) - for his information on German ceramic manufacturers

Norman Warbreck (CH) - for giving information on Joseph Holdcroft

Volker Hornbostel (DE) - for his information on Elsterwerda

Walter Herbster (FR) - for his identification of some Vallauris' signatures

Jan Jönsson (SE) - for his information on Nis Stougaard, Svaneke, Denmark

Yves Johannel (FR) - for his information on Poterie Jean Johannel, Ferney Voltaire

Discovery: René Ben Lisa (1926-1995)
Astonishing minimalist vases by René Ben-Lisa more...
Francis Crociani: discovery of a postcard from 1962
The postcard mentions the purchase of a potter's wheel   more...
Swiss Art Nouveau/Deco pottery from Steffisburg
Discover Thun and Steffisburg pottery   more...