I just saw two very strange lenses both in LTM at the estate preview.
Leica-Sonnar 1:1,5 f=5,8cm. Nr. 1407204. T (in red).
Sonnar 1:1,5 f=6 cm. Nr. 140717
Was was with them a Carl Zeiss Jena 50mm f/2.0 Sonnar with a Contax mount.
I'm thinking these are USSR forgeries. Anyone ever see anything like them?