Are we talking ammo or wine? Both age and can become collector items, but both can turn to vinegar. I have 1918 RA 30-06 ammo in M1 clips that ate right through the casings. Lucky, they were a gift, unlucky, they would have nice presentation pieces.
To the original OP - I would sell individual boxes to collectors and forget about high price sales of cases/tins. Millions exist today, so they are not worth a fortune, but many folks will appreciate them if they can afford them.
Seen on U.S. Forces bumper sticker:
Its Gods job to judge the terrorists, its our mission to arrange the meeting.