Japanese Ammunition Crate
I looked for a long time before finding this. It’s marked for T-99 LMG ammo (which can also be used in the 7.7 rifles). It held 840 rounds and a small piece of one of the 15 round box labels is still stuck in the pitch that was used to seal the seams and knots. 840 rounds translates to 56 15 round boxes of ammo like these pictured.
