Spring is twisted which can't be good, but might run. The suspension spring looks pretty short...seems to be a Kundo with the locking collar for the pendulum, but somehow the pendulum is maybe 0.5 inch or more higher than normal. The upper saddle is slightly bent. The fork might be upside down, but I think the clock could run either way.
I would replace it. That kind of twisting occurs when people believe that "winding" the pendulum several turns will make the clock run. The twisting inhibits the pendulum action and even though they will sometimes still run, often they won't.