I'm guessing this will have been intended to be a paperweight but has been indented to create a shallow dish or bowl. I think this will be Scottish and with the fairly complex ring of eight canes I wonder if this is by one of the Ysarts. This appears to have an annealing fault/ crack internal to the glass that can't be felt inside the bowl or on the outside. There is also a scuff mark on one side. Measures 2 3/4ins diameter and 1 1/4ins high.