[gtohunter]

These are original nails and holes but I don't have dimensional info. Lay the trim out to where it fits well, and just find center of trim. Pins don't need to be dead on spacing wise, but holes need to be pretty close in terms of their locations!
If you could scare up an old set of pot metal corner pcs., just cut off the studs, and drill a small hole through them, and this would allow you to mark the pin locations under the corner pcs.??
The one pic is just showing the chrome loosely attached.