This in an incompele R-Topcor 30cm 1:2,8 obtained as a retuaration project but unfortunatey unfinished.
The fast Topcor 30cm was often remoddeld to fit the Nikon F mount, most likely this is what is left after the Nikon mount crudly is taken off and the original Topcon parts are missing.
It was obtained as retoration project, awaiting for the right missing parts or for renewed Nikon mounting.
What remained was:
The Attached Sunhood.
All diaphragma parts (complete and working properly, blades in resonable state).
One UV filter
All lens elements are included no missing parts.
And a worn out but fully functional original case!
What missis is:
The mounting parts.
The foucs lensbarrel parts.
The lens barrel part for the filter mount.
Optical condition: Lenselements obviously needs a professional cleaning however there seems to be no major damage on te lens parst in the way of scratches or separation, or fungus. However the lens seems to have been exposed to anfull lot of dust. All is modestly cleaned.