Optical Block of LOMO LOOMP OKS1-75-1 2/75mm lens, #646697
The lens was made at famous LOMO factory in 1964 (#646697). Manufacturer is marked as LOOMP (this name was used since 1962 till 1965). It has no focusing mount, so you'll need to make your own one. Diaphragm is there, and aperture control ring moves smoothly.
Appearance is bit used.
Mechanical condition is excellent.
Optical condition is good. There are some cleaning marks, but they'll not affect image quality. Some cleaning is necessary due to dust inside.