Meteor box

[majex45]

I was sorting through some bits recently and came across my old BSA Meteor box. The rifle is long gone and I wonder how much the box would be worth?
Anyone tell me?
It is for a .22 rifle serial number Th79xxx & is a bit grubby from being in a loft, there are some marks where parcel tape has been (glue residue but not sticky).
How do I attach photos??