The Voigtländer Bessa 46 - also known as the "Baby Bessa" or "Klein-Bessa" was made from 1938.  It takes 4.5×6cm exposures on 120 rollfilm. Hinged yellow filter on front, various lens and shutter combinations.
|image by Mark O'Brien (Image rights)|
- McKeown, James M. and Joan C. McKeown's Price Guide to Antique and Classic Cameras, 12th Edition, 2005-2006. USA, Centennial Photo Service, 2004. ISBN 0-931838-40-1 (hardcover). ISBN 0-931838-41-X (softcover). Page 953.