This is a Universal Potteries, Ballerina Mist Line, Strawflower pattern, salad plate.
Universal Potteries Co. began production in 1934, in Cambridge, Ohio. They are known for both their Cattail and Ballerina lines. They began producing the Ballerina line in 1956. I could not find an end production date. The company closed in 1960.
I have eight (8) of these salad plates, each sold separately. They are all in excellent, used condition. The only problem with these is the platinum trim around the edge of the plate. It is slightly worn. The wear is negligible, but I wanted to make sure that I mention it.
Take a look at the pictures, and if you have any questions, please e-mail.