Looking at it.... and the way the box is constructed and labeled, I would think it was something used in the factory... to organize and transport small items..... from where they are produced, to where they are placed in an assembly.... like gears, or small shafts, or lifters/tappets, valves..... bolts..... something of the sort....
It does not look like an organizer for snap rings, or the like, since the holes are all the same size, and no location for a label.....