For general info ...
St Mandé is a factory that has only relatively recently been identified. And it has taken a lot of research and comparison of various weights to get an understanding of the attribution by cane structures.
Many weights that were thought to have been Bohemian have now been re-attributed through cane matching to St Mandé. In the webpage for the Antique Bohemian section
of the CPC 1999 Exhibition I have not got around to checking out which are now thought to be St Mandé, but Row 1, Col 1, 2 & 3; Row 2, Col 1, 2, 3 & 5 and Row 3, Col 2 to 5 may be candidates for reassessment.
There is no website that I know of that covers St Mandé in any particular detail. But checking out the main paperweight dealers can reveal some examples. A god book which covers the subject in 6 pages (roughly A5 size) is Identifying Antique Paperweights, The Less Familiar
by George N. Kulles, published 2002 and available through main paperweight dealers or via ISBN 0-933756-43-7.
Another even more recent development in old French weight Id, has come about through research that has shown some items to be from the Grenelle factory. And suddenely there is a flurry of Ids to Grenelle that previously were "uncertain" or even beleived to be St Mandé.