Continuing my search for French pieces

adding to Ivo's shape find and the one I found linked above, I've come across this pair of vases which I think are French.
Again they aren't exactly the same shape but the spirit is similar, the open foot the thickness of the glass at the foot and the way it is rounded/formed, and they have a cupped rim also.
http://www.ebay.com/itm/ws/eBayISAPI.dll?ViewItem&item=161073168289&item=161073168289&lgeo=1&vectorid=229466In addition to which, I have a few pieces of blue opaline glass and recently acquired this salt (see pic below) which I'm sure is French. It seems to be the same kind of opaline glass, and also the same colour - although photographing them both together to show the colour match has been a tad difficult because the vase is frosted so reflects the light differently.
I've been wondering who the list of possible makers might have been for both pieces and so far for the time frame, can only come up with Baccarat or Clichy - would Sevres have been around at that time?
I've been speculating whether the vase might be Baccarat - is it possible the salt might be from Baccarat and would it date to a similar period as the vase - the blue is uncannily similar/the same?
The salt has a large polished pontil mark on the base - the pontil mark is highly polished, but I tilted it to catch the light so you could see the shape and size of it.
Any thoughts much appreciated and thank you:)
m
Edited to add - St-Louis and Choisy le Roi to possible makers?