what do you mean by 'diagram'? are you looking for what circuits are on it or where the various wires go? if the 59 is like my 56 (and i suspect it is), the fuse panel was optional to run accessories, so what circuits/wiring you have depends on what accessories your truck had originally and what might have been added over the last 50 years...
The fuses are all labeled but there are a few wires with spade connectors that go on the outside edges of the fusebox. Someone unplugged all these and I was curious where they go back? Also found a makeshift "fuse" made out of 3 pennies! Not sure of the concept behind this but it wasn't touching but the top contacts Only the original engineer of this fuse will know it's intentions! LOL
