1950? Fables de la Fontaine 1 and Fables de la Fontaine 3. Lestrade Stéréoscopes #9171 and #9173. Vues sur film Kodak. €5.50 each from Salim Benallag, Chinon, France, through eBay, July, '04.
The existence of this medium was unknown to me until I found these two specimens. Each card provides ten stereoptic views. The first card has two views each of GA, LM, WL, FS, and MM. The second features ";The Cat, the Hare, and the Weasel" (three scenes); FG (one scene); and two scenes each of TT, WC, and FC.