pink opalescent jug

I just got back from visiting my mom in France and brought some souvenirs with me from some flee markets.

I found this pretty jug sitting on a 10 euro table and didn't even think twice before I took it. It has polished pontil mark on the base, gilded rim, handle and enameling, much of the gilding is gone unfortunately. I'm not really sure who made it, I've seen gilded dark ivory/orange enameling on Loetz, Moser, Harrach and I'm sure many others did it. I want to believe this one is Harrach.