Topic: Blue Glass Lampshade -- Degue ?

[theElench]

Hello,  can anyone help identify the maker of this blue glass lampshade please.  I found it in a charity shop.  I think it might be French because of the position of the hooks and what remains of the silk covered buttons.  The most common French manufacturer's name I've found is David Gueron or his signature "Degue".  Although most examples of his work I've found have been white frosted glass I've found a few in pink, so could it be one of his?
Any help most gratefully received.

It's 35cms in diameter.