Master Snuff Box

We bought this off of Ebay probably about 15 years ago and was told that this was what was called a Master Snuff Box that was used in the General Store to store the snuff for the customers to buy according to the Antiques Roadshow . We were also told that this had been on Antiques Roadshow and that they had said that this was from the original 13 colonies. It is a barrel made from wood and has a label that is unreadable on the side of the barrel also on the top removable round plug there appears to be some remnants of a label it looks extremely old. The top measures  approx 5 1/4" across and is 8 1/4" inches tall. It has 4 metal bands each has one small nail holding the bands in place. I am attaching pictures to this. Any questions please ask and I will try to answer I am considering selling this. Any info on this would be extremely appreciated. There was paperwork from Antiques Roadshow but over the years it has become lost. Age creeping up on us.