The artist Kurtys is a mystery to me. Below are their illustrations from the 1932 novel La Princesse Sonia (Princess Sonia) by Grégor Yvan. These are a bit more on the BDSM side, but I enjoy them. Especially the outdoor scenes. ;-)
La Princesse Sonia is available for trade here.
Smiles and Spanks, NaturallyGin.com