yep, I'm agreeing with antmar on this one. you can see the "ninja star" shape on the specular highlight on the chandelier.

some of the lenses Zeiss made for contax/yashica mount actually feature this shape but those lenses do not contain shutters.

looks like the shutter blades aren't opening fully and dragging/sticking (and probably the aperture blades as well)

try taking the back off, open the aperture fully and fire a flash and you'll see the shape more pronounced.
the effect will most likely change with differing shutter speeds also.