Minolta Auto-Bellows Rokkor-X 100mm f4  type_Projectors Zuiko Auto-S lens

Zuiko Auto-S lens

and while it's not in mint condition

but they don't make it any more

though a previous owner has drilled a few mounting holes in a (non-structural) section of the top plate- you can see those in the picture

so you should consider it weather-resistant rather than waterproof

Minolta Auto-Bellows Rokkor-X 100mm f4 &nbsptype_Projectors Zuiko Auto-S lensThe Minolta Auto Bellows Rokkor X 100mm f4 is a macro lens designed for use on bellows only it won't work mounted directly to a camera body. In excellent condition, with some internal dust. You need bellows to use this lens. You can not put it on your camera without bellows. Bellows are not included.