Hi Wilbert, glad you visited south of France and you bought some nice glasses.
Not 100% sure about the one on right, but there are a lot of repros of it on the market today and I guess this is one of them.
Glasses are the most difficult things to identify in the absinthe world (before spoons), some modern repros are beautifully done and can be easily confused with antique ones, don't worry we've all been through this

Just one small advice : look at it under the sun, look closely at the color, if it turns green or perfectly white, it could well be a repro, if it turns red/purple/brown, there is a great chance it's antique, not always guaranteed though, and not guaranteed it's pre-ban, that's another story. It's very difficult to see, sometimes you have to see it side by side with a modern glass, some repros can be very usefull in that case.