another LTM sonnar

[photovdz]

with a very bizarre mount (looks like a ZK rigid mount)

the glass is zeiss... the mount is not

 

[hans voralberg]

Looks like a J-8 or I-61L/D mount

 

[photovdz]

I'm discussing with some russian lenses specialists... but it's not that easy
The glass is Zeiss with all the serial numbers ok... and the front part (including diaf...) is Zeiss
but the mount could be I-26 or similar to some rigid ZK... nothing to do with J8...

If any one knows ... or has ideas