I'm not going to write the lens off completely just yet, but the weight of evidence at this stage is against it being usable. If it turns out as expected that it is indeed a goggled lens, then two things surprise me about this episode. Firstly the seller is a Leica specialist who has built up a large successful business dealing in Leica gear it would seem, it surprises me then with their experience they would not realise the lens is not in original state. Secondly given they have established a good well earned reputation, surely they wouldn't jeopardise it with something as obvious as this. It's all a bit weird under the circumstances.
The lens wasn't cheap but it wasn't exorbitant compared to other similar lenses so that didn't worry me so much at the time.
I'm not saying the dealer mislead you but it's possible that the lens was sold to them as a normal LTM lens (dealers don't spot or check everything, there's plenty of examples on the forum of dealers sending out faulty gear to prove this point!).
I had the goggled version but use an M2 and got tired of the weight and the dimmer/distorted viewfinder image through the goggles after buying a Skopar to compare with - I found the results very similar in fact. It took me quite a while to find a buyer for the Summaron and it was a near mint/boxed example which I sold for average money.
Anyway, wait to get the lens then check it out and see what the answer really is!
Edited by earleygallery, 22 March 2017 - 11:08.