This rare and impressive Dessert Centerpiece was made by Grainger Lee & Co., Worcester, about 1825. It is about 15" long, 9" wide, and 8" high. The base and stand are riveted together.
Although unmarked, the piece is definitely Grainger Lee & Co.'s pattern 1492, described in the pattern books as "5-petalled flowers around borders, flowers growing out of a pot in the center", as noted on page 223 of "Grainger's Worcester Porcelain", by Henry and John Sandon. I have a single matching plate with that hand painted pattern number.
A gadroon-edged dessert centerpiece of the same shape can be found in the Sandon's book as plate 61, with the following description: "The handles are rustic twigs with vine-leaf terminals".
The only flaw I see is a repaired crack to the right handle.
I have several matching dessert plates available. One is for sale here in my shop.