Object
English Porcelain
Bone china, and the factory built around it
Bone china is the English contribution: a body with bone ash in it that fires whiter and takes glaze better than hard-paste. The factories were built around the process.
What to look for
A translucency that shows through the body, a factory mark, and patterns that are transfer-printed rather than painted.
In this group
The searches this object is worth looking at. Each opens the collection for it.