This fabulous, emerald green, art glass Top Hat was produced by skilled artisans at Blenko. It is a versatile piece which could be utilized as a vase, a fruit bowl or an ice bucket depending on the occasion. This shape is a pre-designer, early piece of Blenko.
I haven't been able to identify the exact name of the green, but it's a rich green tinged with a tiny bit of yellow. The closest comparisons I've found is Emerald Green. The glass does have seed bubbles throughout and tiny flecks of inclusions, which may help to pinpoint the specific colour if you're familiar with their work.
This piece measures 5 5/8" in height and 8 3/4" in diameter.
In excellent condition it has no chips, nicks or cracks at all.