This gorgeous plate is large: 10-1/4". It is transferware pottery, with underglaze cobalt blue, and hand painted enamels of red-orange, green, purple, pink and gold. There are 10 compartments enclosing the floral border. The transfer was done in a reddish brown, or puce.
Although there is no maker's mark on the back, the pattern number is printed in puce: No 15. This pattern is identified as by William Brownfield, Cobridge, Staffordshire on the Brownfield Pottery website. It is dated 1850-1855 on that website.
The plate has no chips, cracks, or repairs, and very little wear to the gilding. There is crazing on both the front and the back. The plate does not ring when tapped.
Note: I have seen a matching plate with the same No. 15 mark, and the additional handpainted pattern number 7149.