I just pulled this thing from a large board, I think it's part of an inverter. The board also has a huge CM choke, 8 IRF260N and other fets. No manufacter shown. This thing was part of the input filter it looks like, there are two screw terminals for the input.
Here is a picture. The "256 250V MP" plus the makers logo are the only markings. Size is 50 x 35 x 24 mm.
I've spent more than 30 mins doing the Google thing, looking at more than 10 pages of various logos. Did I somehow miss it, or was it a rare company? Who made this??
Ok, I know it's a 25uF 250V metalized paper capacitor, I would like to find out who made it. I have seen none this big with this small a value.