The PRB-6A has had the hinges brazed on, a handle brazed onto the key cylinder, the wheels changed and it looks like the legs have been cut off and brazed a little higher up. I'm not too farmiliar with the construction of these older snap on boxes, but i'm going to stick to the line of thought that anything brazed on this box is a modification or repair. While some of these "fixes" are at least somewhat clean, i'm going to attempt to make everything the way it was.
Here's some shots.




The man i got it from also referenced an oil can squirter and bracket that used to be attached to the box, but he lost. This is where it went. Was it a Snap On option?

Now.... the K-55 is in fairly good condition. First appearance I could find was in '42. Two of the drawers, on one slide only, slide too far and come out and there's holes drilled into the lid and the body for a pad lock. So, the key is missing as well as the two lock bars and peice that covers the drawers when locking it up. The Snap On logo is there and in halfway decent shape, and I found a "Made In USA" stamp in the back middle of the box. This box appears to have been repainted as sand paper marks are evident here and there. The bottom of the box, almost looks as if it was replaced the metal is in such good, shiny shape. If it was, someone was very good at their job, because it is clean.


Here's the bottom I was talking about..

I have a few questions about these. But will chime in later... Enjoy!