Coffee set 7-petal flower mark: Will & Barbara Pots, Pots Pottery, Cornwall

Dear forum-ites, I found this coffee set in a charity shop in Kent last week. I have been hunting the 7-petalled impressed flower mark to no avail. I am hoping someone will recognise the mark, or the style which I have fallen in love with (rough vs smooth, controlled vs free, so tactile). The coffee pot is 21cm approx tall including lid. The mugs are 9cm and the jug about another cm taller. Each piece has the same design elements of a splashy buff-coloured glaze and a blackish painted stem and leaf but the sugar bowl also has a slightly out-of-keeping scratched design. The flower impressed mark is either under or to the side of the bottoms of the handles, and on the side of the bowl.
Thank-you, Manda

Closest flower marks are Kathleen Ellen Marigold Austin's Calendula Pottery - but not quite right - or Will and Barbara Pots of Pots Pottery in Cornwall, which looks a much better match

https://www.20thcenturyforum.com/t30937-bud-vase-pots-pottery-cross-mark-will-barbara-pots-hayle-cornwall

Thank-you! I had wondered about Pots Pottery but it seemed they had POTS stamped on their pots too, but perhaps not all. I have contacted the volunteers at Hayle Archive asking if they have any information as the Internet seems to have very little. I will post here if I get a substantive reply. Best wishes, Manda