When you say modern, how old do think this could be? And if you had to guess, what value would you place on it?Modern repo of a Union CW 58 Cal. cartridge box.
The wrench is a tool to remove the nipple/cone where the firing cap is placed. Also used to breakdown the rifle's lock plate.
The T handle tool is a nipple wrench as well.
The slotted item is used on the ramrod to place a cleaning rag.