For sale is an exceptional, museum-quality Leica stereo ensemble, representing the evolution of Leitz stereo photography — from the early screw-mount accessories of the 1930s and 1940s to the refined M-system stereo solutions of the 1950s.
This curated set brings together three key milestones in Leica’s exploration of three-dimensional imaging.
All components are original, exceptionally well preserved, and ideal for collectors or as a highlight piece tracing the history of Leica’s stereo heritage.

Included in the set:

1. FIATE Stereo Slide Bar (screw mount)

Early version of the Leitz stereo slide bar, used with screw-mount cameras.
Beautifully preserved and complete in its original "alligator" pattern Leica box.
The rails and fittings are immaculate — a fine example of Leitz engineering from the earliest phase of stereo experimentation.

2. Early VORSA Stereo Attachment with Visor (screw mount)

Rare, early-production VORSA stereo attachment, complete with its original viewing visor.
This ingenious accessory allowed stereo photography with a single screw-mount Leica body and lens, splitting the image into two perspectives.
Mechanically perfect, with smooth operation and clean, haze-free optics — a superb example of Leitz optical precision from the prewar period.

3. Stemar 3.3 cm f/3.5 OIRZO-M Outfit (Leica M system)

A complete and near mint Leitz OIRZO-M stereo outfit for the M system, including:

• OIRZO-M stereo base bracket
• OIASO-M Stemar 3.3 cm f/3.5 stereo lens (M mount)
• OIMPO beam splitter
• OIDYO stereo finder
• OISBO hood
• OIBUO original Leica leather case

This late development in Leica’s stereo lineage brought the concept to the M series, combining refined mechanical precision and optical design in a compact, beautifully engineered system.
The set is near mint, optically pristine, and fully functional — among the best-preserved examples known.

Condition:

All components are mint or near-mint, with minimal handling traces.
Every piece is original, complete, and fully operational.
No haze, fungus, or separation. Stored carefully in a climate-controlled environment.

Price: EUR 4100 (reasonable offers considered)

Location: Portugal – secure EU shipping available, or in-person handover by appointment.

Viewing: Video-conference viewing available on request for serious buyers.

This is a museum-worthy Leica stereo collection, spanning the full story of Leitz stereo photography — from its earliest screw-mount experiments to the refined M-system implementation.
A rare opportunity to acquire a complete, historical sequence in exceptional condition, ready for display or study.

Image courtesy and copyright © Yoshikawa Hayao