Antique Silverplate Tilting Tea Pot Kettle With Stand BRITANNIA SHEFFIELD

Description

This is a very good looking antique silver plate tilting teapot/kettle.
I am uncertain as to how old it is, but it definitely has very good age.
The entire piece measures 13 inches tall (33 cm). It is approximately 5 inches wide x 11 inches long (12.7 cm, 28 cm).
It is marked on the bottom:
BRITANNIA
“ a woman and a pitchfork “
PHILIP
ASHBERRY & SON
SHEFFIELD
4581
Q (?)
One of the pins comes out and allows you to tilt the teapot. The other key can be removed and allows you to lift the teapot off the stand.
Unfortunately, it is missing its burner. The small finial on top is a little crooked. The chain that is attached to the key that allows you to lift the entire tea pot off was repaired with a thin piece of wire (please see close-up photo). There are some small scattered scratches to the surface.
I have not polished it.
It weighs 4 pounds 2 1/2 ounces (1.882 kg).