Showing your youth...the "little file far left" is a point file, used to clean up the ignition points in traditional points-and-condenser ignition systems (cars, motorcycles, etc.). Useful for other stuff where you need a thin file, too, and notable for being somewhat flexible, helpful when you're trying to fit it into a distributor, so you can match-file the two points (easier when your car/motorcycle/airplane/boat has points that are all one assembly and can be quickly removed from the distributor).
First "see through" Huot index I've seen.
Nice haul.