I would have guessed a shadowbox like military retirees get but for retired Snap-On dealersLooking at the OP’s picture his looks like an earlier award set as his isn’t gold plated like mine was. Still very cool that a company like Snap-On could come from such a simple start.
My guess was a replica of the OG Snap-on set.Is it one of those original socket handle sets from them? The “5 does the work of 50” or something like that?