Actually, having another look in the mentioned book, there are four different acid marks illustrated on page 549...
One of them has 'marque déposée' underneath, another 'made in France' but both are written 'curved' so that wouldn't match with the mark on your vase... the third one has got Baccarat written in a straight line, underneath the oval, ... now your mark is difficult to read, but it does match. It's mentioned that they have their designs for perfume bottles and atomizers made at several houses, one of them being Baccarat.