I had been shopping for mine for over a year before I found one which I liked
From E.Puts Leica Compendium, serial # runs from 1630501 with approx 22,500 lens produced. The book doesn\'t say when serial # ends but version 2 starts at 2307451. Production started in Midlands and was transferred to Weztlar later on. Mine is a 219xxx serial. I don\'t know which serials are best but collectors seem to prefer the later Wetzlar version, so the Canadian Midland ones could be a better buy as a shooter lens. From speaking to a Leica repair specialist, it doesn\'t really matter if it was Canadian or German but quite a few copies of these lenseshave less than ideal performance due to the complexity of aligning all 8 elements. So its best to buy from someone reputable or look for a good return policy. I think pricing varies but is quite stable at $2500 to $3200 for an excellent copy of the non goggled version, otherwise I have seem some in the low $2ks recently which were really nice mechanically. Rarely can find one under $2k lately.
