Small stoneware jug anchor mark - John Buchanan

Hi I have this lovely little jug, anchor mark in a circle under the handle.
I have seen similar on the forum, with names such as anchor pottery, but mine hasn't got the addition of st ives etc.
And feel the mark looks a little different.


Any help appreciated many thanks

Anchor Pottery is John Buchanan
https://www.20thcenturyforum.com/t26521-john-buchanan-anchor-pottery-hayle-and-st-ives-cornwall?highlight=buchan.
He had various potteries in Hayle and St Ives in the 60's and 70's. He used to sell in Sloop craft market in St Ives through the 70's, and this is the period when he used the St Ives mark as well. Studio pottery marks often vary and his is no exception.

Thank you, I suspected it was by him, thank you for confirming this.