Who made this old Teapot? - Jackfield?

Lovely large old teapot.  It has knobbles all over like on those Royal Doulton vases. The only clue is a line of dots inside the rim on the base.  Thank you." />

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I remember hearing that dots are often used to signify a date

jackfield perhaps?

I thought Jackfield ones were always painted. Isn't it only Doulton who use the dot counting method, but when it's around a stamp? But you may well be right. I'm clueless