The item was made in Japan by Asahi Opt. Co, works great.
It is clean, and clear optic.
No mold, no glass scratch, no haze.
The aperture blades has slightly oil, but the irisis open and close fine.
The focusing ring is smoothly turn.
The lens is condition.
Caps are included, front Original Pentax cap, generic rear cap. The filter is giveaway.
it fits Pentax k mount camera.