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Rietzschel Kosmo-Clack Stereo

The Rietzschel Kosmo-Clack Stereo is an early twentieth-century German stereo camera, designed to expose paired images for three-dimensional viewing. Rietzschel was a Munich-based optical maker active before its absorption into Agfa, and the Kosmo-Clack was positioned as a compact stereo instrument for plate photography.

UK auction hammer results for the Kosmo-Clack Stereo show a very wide spread, with recorded sales ranging from £60 to £800 and only two data points to draw on. At saleroom level in today's market the value is highly condition-dependent, and completeness of the original leather case, plate holders and matched lens pair can move a clean example toward the upper end of that range while tired bodies sell for much less.

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Sales History

Prices shown are UK auction hammer results — the wholesale level achieved in the saleroom. Neither buyer’s nor seller’s commission is included. Dealer and retail asking prices are typically higher.

Prices updated: June 2024

Date Price Source
Jun 2024 £60 David Duggleby
Jun 2015 EUR 400 Leitz Auction
May 2007 EUR 800 Leitz Auction
Nov 2002 £705 Christie's

Frequently asked questions

What is a Rietzschel Kosmo-Clack Stereo worth today?

Recorded UK auction hammer prices span £60 to £800, so value depends heavily on condition, completeness and whether the original case and plate holders are present.

How much does a Kosmo-Clack Stereo sell for at auction?

The two hammer results on file sit at £60 and £800, which gives a guide to the price range rather than a reliable median given how few sales have been recorded.

What should I check before buying one?

Look closely at the bellows for pinholes, the paired shutters for consistent timing, and both lenses for internal haze or separation, as these are the faults that most affect usability and resale.

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