The Voigtlander Avus was manufactured in Germany from 1913 to 1935. The camera has double-extension bellows and the front lens standard allows a small amount of both rise/fall and lateral shift. There is a large folding sports finder and additional brilliant viewfinder with bubble level.

The manual for this camera is available here:

https://www.butkus.org/chinon/voigtlander_pdf/voigtlander_avus/voigtlander_avus.htm

This version takes 6.5 x 9 cm images and is equipped with a roll film back. The lens is a 105mm f/4.5 Skopar anastigmat set in a Compur shutter.

In addition to the roll film back there is a ground glass back with collapsible shade.