Anybody have info on this adapter/extension tubes?

dlove5

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Anybody ever see of have one of these adapters? What was it designed for?
I just bought this off of ebay because it may solve one of my problems to try to adapt Visoflex bayonet short focusing mounts to a Pentax SLR.
As near as I can tell it is an M bayonet lens to LTM camera adapter attached to three LTM extension tubes of various lengths. They have a hammertone gray finish. I have never found any information on the adapter. It is not listed in any of the Leica catalogs, manuals, or books I have consulted. I saw just the adapter on ebay about 6 months ago or so. It too, had a hammertone finish. I do think it had an id number on it, but I don't recall what it was.

Any insight or help would be greatly appreciated.
This item does appear to disprove a commonly held believe that Leitz never made a bayonet lens to screwmount adapter. I should qualify that with the bayonet mount pictured looks like the kind found on the front of the Visoflex II/III as opposed to that found on the front of M cameras. The rib around the bayonet fitting mates with the flange on a Visoflex short focusing mount. Evidently Leica may have done this to prevent someone from putting a short mount directly on a camera.
So it probably had some other application than to allow a bayonet mount lens to be used on a LTM Leica. Unless we are talking as a macro lens.

Sorry for the long winded post.

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