Anyone have any idea of the value of a lens like this?
I can only find some information on it, and the only value i found was some russian ebay look-alike, asking for almost 7000$ for it.
It's made in 1920, and is the original carl zeiss jena version. not a licensed one. Or is the E.Krauss more valuable than the Carl Zeiss? The Krauss ones i have seen, but have not come up whit zeiss ones.
And it's of course a 160mm, not 165mm...
What also interests me, is why there is a different serial number on every part? there's one in the barrel, one in the front group and one in the rear group? Witch one of these is the actual serial number i can use to date this lens?
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