ANTIQUE GEORGIAN CUT STEEL PORCELAIN BROOCH C. 1820 (EARLY 19TH C)

Since I started studying at Silesian meshwork , Berlin Iron and early Cut steel jewelry and moreover I saw a pair of earrings with a cut steel edge which were the same as a brooch I showed you about 4 years ago on CW. I came to the conclusion that this brooch is even older thanI thought. I suppose it's around 1780. That’s why I show you this brooch again today.
It’s a really lovely original late Georgian brooch in cut steel, with mother of pearl back. The front has cut steel surround and this cut steel has about 16 cuts which is for sure very old dated early 1800s. The brooch is set porcelain showing a young lady on the swing being pushed what appears to be a servant or footman. In excellent wearing condition.
Size 35 x 30mms , weight 11gramms. Circa 1820.