One can always remove and save the labels of remarkable wines in France.

There are kits sold for same here in Europe, or the waiter may be able to do this for you. They being professionals can perform this task with a little water and extra time.

I used to do this using a kit from North America that took the printed side of the label off by sticking to it, and we have a nice collection of labels from California, Washington, and Oregon in a leather-bound binder that came with the kit.

Today I find it quicker if I snap a close-up photo with my phone. For some strange, unknown reason the bottle in the photo is always empty, a good excuse for another bottle to enjoy with dessert.