Kodak Recomar 33, Schneider Kreuznach Radionar lens, 9x12cm Foma 100 & HP5.
Discovered that the Kodak 9x12 film holders I have get themselves stuck in the back of the camera thanks to having a shallower edge at the bottom of the darkslide. My ragtag collection of Ernemann, Agfa, Leitz, Voigtlander and unbranded filmholders all slide off and on easily enough, only the couple of Kodak film holders get stuck (I freed the stuck holder by inserting the dark slide between the filmholder and camera to work the edge of the filmholder over the metal lip above the velvet where it was stuck, potentially getting some light on the exposed film inside). It's tempting to speculate that the Kodak film holders were not actually made by Kodak's Nagel operation...