My grandfather was a big trunk collector. He liked to pick them up cheap at flea markets and garage sales in various conditions and then take his time to revitalize them and turn them back to how gorgeous they were. He hasn't done any trunk restoration lately but my mother still has some of his earlier projects and a few of the trunks he picked up and I was able to play with one of them.
There are multiple ways to seal and restore trunks and many different How-To's online for those. I decided to go with a (what I thought was) very simple route and stick with fabric. To start, you need:
.: fabric
.: trunk
.: sharp fabric scissors
.: cloth tape measure
.: spray glue
.: fabric glue