There is a seller on here selling 5 of these plates

From the same era for £1130 that’s £226 a plate

antique Dresden porcelain plate, decorated by Ambrosius Lamm, known for its intricate hand-painted floral designs and reticulated (latticework) borders with gilt accents.

Details of the Plate:

Decorator:

Ambrosius Lamm was a prominent Dresden porcelain decorator, known for hand-painting porcelain blanks often sourced from other manufacturers, such as Meissen or Carl Teichert. &

Design Elements:

The plate features a central hand-painted floral bouquet, surrounded by smaller floral sprigs. The border is characterized by a reticulated or openwork pattern, typically highlighted with gold gilding and scalloped edges. &

Period:

Plates decorated by Ambrosius Lamm generally date from the late 19th to early 20th century, with some pieces specifically noted from 1887-1920 or later into the 1930s and 1940s.

Markings:

Authentic Ambrosius Lamm pieces often bear a blue lamb mark, which was his decorator's mark.

Additionally, the porcelain blank might carry the impressed mark of the original manufacturer, such as

"MEISSEN" or the green "CT" mark for Carl Teichert.