Identifying a Fitz
Colt always stamped the VP on the left FRONT of the trigger guard, but when the trigger guard was cut off during the custom modification, the "VP" was cut off with it.
So, Colt stamped the "VP' on the rear.
No "VP in a triangle" on the left rear of the guard, it's not a genuine factory Fitz.
Truth is, ONLY a Colt Archive letter will tell for sure if it's a genuine factory Fitz.
Quoted from dfariswheel, THR.