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Multi-Clack 9x12cm format
Rietzschel Doppel Anastigmat f6.8/150mm
in Compound shutter
image by yalluflex (Image rights)

The Multi-Clack is a range of folding plate cameras produced by the German company Rietzschel from about 1912 till into the 1920s.^[1]

The Multi-Clack was produced for 3 plate sizes.

A special version for stereo photography is called the Stereo-Multi-Clack.

9x12cm

Rietzschel Multi-Clack 9x12cm, Doppel Anastigmat f6.8/150mm lens in Compound shutter
Images by yalluflex. (Image rights)

10x15cm

↑ 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). p826.