Estate sale mystery find

This past weekend I attended a few interesting estate sales and picked up a lot of 'treasure'! One pair of items though remains somewhat of a mystery to me and thought maybe someone would have some background. This unusual pair of macabre tree trunk vases appear to be quite old , perhaps Victorian period? Google searches turned up nothing other than a few Belleek vases but they did not have the unusual root 'legs'.  Has anyone seen a vase like this before?

 This extremely faint mark was hard to read and photograph - appears to be a serial number?

I also picked up this rather worn mahogany sidechair with tired damask upholstery. The wood has beautiful detailing but needs some conditioning.

Stay tuned for the reupholstered after in the coming weeks!