|Breakfast at Tiffany's (1961)|
|Et Dieu... créa la femme [...and God Created Woman] (1956)|
To this point I have located samples of these slides with dates ranging from 1921 through 1964, however it is not at all clear when the slides themselves were produced. For example, the slide advertising Buster Keaton shorts includes The Goat (1921)* but it is quite clear that the kinodia slide itself is contemporary with the slide for Jayne Mansfield film It Takes a Thief (1960). From that perspective, the only thing I can know for sure is that these slides were used at least as late as 1964, the year Kiss Me Stupid was released.
|The African Queen (1951)|
One interesting aspect of the slides that I have thus far located are that the images are printed on flexible transparent plastic instead of on a glass plate coated with photo emulsion. Additionally, these examples (admittedly, a very small sample size) consist only of this plastic material without any frame or backing.
|Three Buster Keaton comedies: College (1927), The Goat (1921), The Paleface (1922)|
|It Takes a Thief (1960)|
Based on these measurements, my currently working theory is that these transparencies were originally either sandwiched between glass panes, or mounted in some sort of frame, that measured to the standard European lantern slide dimension of 3 ¼ inches square.
|Kiss Me Stupid (1964)|
Clearly I have much work ahead to gain a fuller understanding the practice of this medium in German cinemas. I am exceptionally eager to hear from anyone who has information or can provide additional insight on the topic. Just click on the comments section below, or email directly to email@example.com.
* All captions are the original release titles from the film's country of origin - not a direct translation of the German. ...and speaking of translation, many many thanks to Helmut for his help in that regard.