That's a good looking bike. I should have said check to see if the front wheel is properly centered, not dished in post 2 above.

So yeah just work your way logically through the possibilities: is the brake centered, can you tighten the wheel down properly, are the drop outs properly aligned, is the wheel centered, and then last maybe the fork is off.

The one thing you don't need to worry about is that the hub spacing may be a bit narrower than the fork. That just doesn't matter with a steel fork.