Looks like magura Direct Mount but it's long, the forks can take a 24" or 26" and the mounting holes line up with both 24" & 26" rims.
The forks are unbranded, not sure on age or brand, I think they've been resprayed as there is over spray inside the screw threads, so maybe they were initially unpainted
Not sure how best to mount the Magura IDM mountings to the frame mounts
Different angle of the mount
And a piece of blue foam I cut to what I expect the original spacer /mounting hardware to look like
Sorry if this is the wrong place
I only acquired these about a week ago, and don't have any trials friends I can ask about this kind of stuffany help identifying the forks or how to mount the brakes safely would be grately appreciated