Here's a U-1981A dome incused with Taylor & Tunnicliff. It measures an odd 4 1/2 inches x 5 1/4 inches tall. Upon close examination there is a tiny number "30" on the base! The one on the right is another tough porcelain to find. Its a U-1981 incused Bullers LTD London (skirt) measuring 3 7/8 inches by 5 3/16 tall. Both have light cream glaze with extended triple petticoats and originated from the Keith Neal collection.

[IFONA U]