Jochen,
Thanks! Is it possible that I have the dual range Summicron. it is set up to accept goggles. I also have a set of three close up lenses marked 1, 2 and 3. They don't appear to be threaded though???
I wasn't a leica guy but I did stumble onto a leica M3 with a bunch of accessories. The Camera has the 50mm lens on it. There is a odd shaped leather case with goggles and an attached 35mm lens. in that same case there is a strap with goggles that can be attached to a lens. My 50mm has that attachement. The Cylindrical case has a collapsible 90mm lens but this lacks that goggle attachment.
Excuse my ignorance concerning Leica. I go back too many decades to mention with Nikon and previously (stone age) Canon.
I never owned or used Leicas before.
The loose google seems to be for a telephoto, could be the 90 or a 135 that I don't own. Why does that case have the isolated goggle in addition to the 35mm set?
I have attached a shot of the two cases and contents.
Thanks for any help.
Dean