This mark was used by U.S.A. Limoges China Co. and “June Rose” is the name of the pattern. Frederick and Frank Sebring founded their factory in Sebring, Ohio, in 1900. It was originally called Sterling China Co. and later changed to Limoges China Co. China made in Limoges, France, was in high demand, and the American company hoped to capitalize on the popularity by calling their products “Limoges.” They made tea sets, dinnerware, chocolate sets and desert sets, all inspired by porcelain exported from Limoges to the United States. French porcelain factories were not pleased, and the Sebrings were forced to change the name to American Limoges China Co. in 1949. In 1955, the factory closed. Your dinnerware was made about 1920, and assuming your set is a service for eight, it would probably be worth $300 to $400.
Address your questions to Anne McCollam, P. O. Box 247, Notre Dame, IN 46556.