The prop created by set-designer Pascal Lecocq for the production of the Ring, by Wagner, at the Opera de Nantes, France, was display at the hall entrance of the IUFM of Nantes, May 20, 1996.
See the pictures of the 4 operas where the prop was used:
Rheingold, 1992
Die Walküre, 1993
Siegfried, 1993
Die Götterdämmerung, 1995