This Olympus OM Mount to Microscope Photomicro Adapter L which attaches to OM or SC35 Type 12 mounts was last used on a few occasions 40 years ago to photograph histology slides for my Thesis. The attachment to a microscope tube is with the included type P adapter.
The other Olympus photomicro items that go with this item (Focusing screens and Varimagni Finder) will be listed separately. This item is in the category "Cameras & Photography\Lenses & Filters\Lens Adapters, Mounts & Tubes".
The seller is "geoffrey5239" and is located in this country: IL. This item can be shipped worldwide.