This fabulous and rare Jelly (or Blancmange) Mould clearly depicts a dairy maid churning butter with a staved, cylindrical butter churn. There is a leaf motif along the sides of the mould. The mould is about 8" (20.5 cm) long and 6" (15.5 cm) wide. It was made by the Herculaneum Pottery of Liverpool. I was not able to find another Herculaneum Jelly Mold for sale on the internet.
For a very similar mould, see "The Herculaneum Pottery" by Peter Hyland, page 73, figure 65. He dates that mould c 1810-15.
The impressed name, "HERCULANEUM" is on the smooth exterior base, which has been so abraded over the years that it is now almost illegible. I was unable to photograph this faint mark.
There is a chip which shows best from the back side of the mould, and a crack which extends from that chip into the interior of the mould. Not bad for a piece of 200 year old kitchen ware! Please scrutinize the photos.