Royal albert produced the silver birch pattern in england from the 1930’s until 2001. The back stamp on these pieces signifies them are early pieces. The saucers in this set of 6 are 5.5 inches in diameter and the cups have a 3.25 inches mouth. The cups are the countess shape. Each piece has a good ping. They are in like new condition. No chips, cracks or scratches. This item is made of bone china.