Painting on glass

[Alekx]

Hello. There is such a picture, at a slightly convex glass. Appliances writing pictures I do not understand. If you look at her with a closed rear side, her one image. If you remove the rear wall and look at the clearance disappears facial image and shows that it was written kistyu.Razmer 21x27. At the back of the picture has a sign, something like "Early Villard .......". I would be grateful for any information. Thanks in advance.
Yours faithfully Alexander.