The presence of a part number but absence of a manufacturer name/logo as
well as the overall look, leads me to believe these were custom made
tools. The number, obviously, to identify the tool. Probably something
used for locating something or other during an assembly operation.

I've seen lots of things in surplus outlets, and estate sales, that were
a total mystery. I like to admire and ponder, but usually walk away
without a clue....


Jon