Is all Rookwood Pottery marked?

The following summarizes the basic marks seen on Rookwood Pottery. his logo was used on virtually every piece of Rookwood produced from 1886 until the end of production in 1967. The use of Roman numerals to date Rookwood continued until the end of production in 1967.

How can you tell if a pottery is unmarked UK?

Look at the bottom of your piece of pottery for a design that may indicate the pieces origin, even without the potters name or the factory name. Indentations in the bottom of the piece, allowing it to sit flat, may also be indicative of its origin.