Originally Posted by Unca_Sam

Judging from the brake calipers being set above and behind the tire, I'd guess the fork is somehow bolted to the eyelets on the dropout. 😬
Sooooo...Ashtabula fork spread open 10-15mm per side, bolted to a stamped DO eyelet tapped for a #10 bolt. I'm not sure you can cold set the fork ends on an Ashtabula fork, and I wouldn't trust my teeth to a pair of #10 bolts and nuts that are tasked with:

1. not shearing with 75+ lbs focused on them
2. Resisting the tension of the Ashtabula fork ends trying to stay in line with the splayed fork blades.

I dunno, maybe the guy was a genius and altered the DO so you could run a bit of axle through it, with nuts on both sides, and spaced and set the fork ends to align with whatever the outside DO distance is.