Victorian 9ct Gold Amethyst and Pearl Swallow Brooch

This is a really beautiful 9ct yellow gold amethyst and pearl Swallow brooch from the late Victorian period.
The amethyst gemstone is 3.00ct approximately.
The amethyst and the pearls are all original.
It is in excellent condition.
The hallmarks are clear.

Hallmarked:Birmingham 1987
Markers mark: TA&Co (could be Thomas Acott & Co)
Weight: 4.1 grams
Amethyst weight: 3.00ct approx.
Measurements: 51mm 20mm (at the amethyst)