The Photavit IV was advertised in 1948 as the world's smallest camera for 35mm film.
Schneider
Radionar 3,5/37,5 in Prontor-S
Schneider Radionar 3,5/37,5 in Compur-Rapid
Schneider Xenar 2,8/37,5 in Synchro-Compur
Schneider Xenar 2,8/37,5 in Compur-Rapid
Schneider Xenar 2,8/37,5 in Prontor-S
Schneider Xenar 3,5/37,5 in Prontor-S
Schneider Radionar 3,5/37,5 in Prontor II
Ebay 2003/06/03 40EUR, 2004/12/05 57EUR (case), 2006/04/18 41.50EUR