Large Drip Glaze Pottery Craft Vase

Large(ish) vase with a drip glaze. 9" tall and 7.5" diameter.
So I think this is Pottery Craft because it has all the attributes of a typical Pottery Craft piece.
The colors, shape and the bottom which has the 3 brown felt stickers and a faint straight line seam in the center are all common Pottery Craft characteristics.
My curiosity about it is whether or not this is a Robert Maxwell piece? Did He produce pottery for PC without putting his name on it?
It's quite large for a PC vase but the shape is very similar to quite a few other smaller PC vases. No mark.
If anyone has any thoughts on this I'd appreciate it very much. Thanks!