Tamron, for Contax, Lens, Used

Used item
Tamron lens for Contax
(It says so on the cap, so I believe it is. Please make your own judgment.)

TAMRON 1:3.8 1:4/210
80-210 mm
I don't have a camera to test it, so I can only visually confirm its condition, but it doesn't seem to be broken.
I don't think there are many dust particles or mold.

I'm an amateur, so I don't know the details.
Please judge from the photos. I think it's a very cool lens.