Cauldon Potteries was formerly Cauldon Ltd, and were based in Stoke from 1920-1962. In 1962 they were acquired by a Bristol company. This printed backstamp, Royal Cauldon England Est. 1774 Made In England was in use from 1930-1950 with slight variations. The later mark from 1950-1962 has Royal Cauldon above the crown and Made In England below, with Bone China to the left and right of the crown.
We'd recommend these guides for further help in identifying pottery marks. Please click on the images for further information.