This is a vintage Harker, USA Cameo Ware 6 inch in diameter bread and butter or side plate in blue and white with the carved floral design.

Cameo Ware was made in the 1940s.

The plate is in very good +++used vintage condition with no chips and cracks but does show that it has been used if you look closely.

I love this blue and white pattern, and it will go so well with so many other patterns!