This appears to work fine but I have not tried or tested it on a camera - it is nice and clear in the middle part of the lens but looks like a bit of fogging around the outer few mm so selling as spares or repairs on that basis.
Contax Carl Zeiss Sonnar 180mm f/2.8 T* AEG C/Y Lens [Near Mint] #2 from Japan
[Near MINT] Contax Carl Zeiss Sonnar T* 135mm f/2.8 Lens AEJ C/Y JAPAN
[Mint] Contax Carl Zeiss Sonnar T 180mm F2.8 MMJ Lens for CY Mount From JAPAN
[Exc+3]CONTAX Carl Zeiss Sonnar T* 180mm F/2.8 MMJ Lens From JAPAN #u11267
[Almost Unused] Contax Carl Zeiss Sonnar T 135mm F/2.8 MMJ Lens for CY Mount
Contax Carl Zeiss Sonnar T* 180mm f/2.8 MMJ Telephoto Lens C/Y [Top MINT] JAPAN