I just got a chest and I did some research on this chest from the guide. Seems to be an O42 with lid restraints, which would put it between 43 and 59.
What I can’t see is a decal or name plate on the bottom drawer that would narrow down the dates. It doesn’t look like any name plate has ever been “nailed” into the drawer, so maybe it’s a foil oval that has fallen off.
Some of the hardware is missing and I don’t have a key.