Kind of what it says on the tin. I got this lens, sans caps, as a gift from a friend (who doesn't really know photography). It's dusty but otherwise seems to be in decent condition, but I can't seem to find any information about it on the Interwebz.
It's got a "clicky" (non-continuous) aperture adjustment, and an auto/manual aperture switch located at the base. Minimum focus is 1.5m.
Sorry about the awful quality — these were taken with my phone (I know, I know).
EDIT: I've found a description for a lens that's an exact match for this one, but with Prinzflex branding. I wonder what company did the original design work?