I have already spoken of the 8/2,8cm. It was made in 1940, by the Thiele, and was very probably transformed directly "for Fed" by Zeiss at the demand of the Soviet Army at the end of WW2.
Here is another Tessar, always made in 1940 by the Thiele, and transformed too into LTM in 1945 or 46. But that time, it's a 3,5/5cm lens:
Note the number "1124" which was engraved on different parts of the ranefinder barrel. All the original Zeiss LTM lenses have such a number.
And there is too the "M" for meter, only engraved on lenses for Russian cameras.