The notes with the vase reads as follows

Fenton 8.5" vase #8654 "Sunburst" patter with cupped hand tooled rim.  Marked w/f in Oval.  Carnival Glass "Cobalt Marigold".
Sunburst was an early 1900s pattern by McKee Glass that had be recently acquired.

By Fenton From McKee.  I believe Fenton has only used this pattern twice:  Once in the mid 1920s and once in the 1990s on a green carnival vase they call "pinwheel" in Holiday Green Carnival.

This vase has exceptional color with unusual matte top and gloss bottom.