After doing some measuring, they appear to be 750 forks, as they're 50/54 top/bottom. Haven't had the chance to measure length though to try and figure out what year they came from.
Yeh I know they were not set quite equal, my larger concern is the right-hand fork which almost looks like it's coming apart, with the snap-ring showing. When you adjust the screw on the top, only the brass screw itself should extend, but somehow it looks like part of the top cap assembly has failed?