I've had a reply from Mareike Michl at PK, she says she doubts that it is Launay Hautin because of the colour, she doesn't mention Baccarat. She says it could be No.2099 shown in the 1878 Vallerysthal catalogue but the illustration isn't clear, I've not been able to find that catalogue. Another possibility is Villeroy Boch, late 19thC. She's going to pass the photo onto a collector who has done research into this type of glass.