Plate with JH mark - Joyce Haynes?

Do any of the studio experts out there recognise this?

Thanks for looking.

The mark looks like that of Joyce Haynes - unless I'm mistaken

The two JH marks like yours that I can find are Joanna Howells and Joyce Haynes.

Joanna for many years has worked in porcelain but did work in stoneware early in her career. However, the examples that I have seen are decorated in brighter colours and the style doesn't really fit.

Joyce Haynes, who is suggested above, is a new name to me and the book suggests that she used a mark similar to yours when working in Scarborough from 1947 to 1960. That seems to fit in with where you live but without having seen any of her work it isn't really possible to give a definitive attribution.

studio@joannahowells.co.uk

Email for Howells ,

I can't find anything on Joyce haynes and I have never heard of her .

For the record, links to a couple of signed pieces by Joyce Haynes:
http://www.worthpoint.com/worthopedia/studio-pottery-vase-joyce-haynes-425448650
https://www.the-saleroom.com/en-gb/auction-catalogues/arthur-johnson-and-sons/catalogue-id-ibart10240/lot-6e4621ea-8881-4a78-8056-a45600e455e9

Certainly possible, from the brushwork. And interestingly her  entry in Who's Who In Art for 1974  reads:
"pottery teacher, Scarborough School of Art (1947-56); b Aldershot, 1917; d of Lt.-Col. P. Haynes. Educ.: St. Helen's School, Abingdon; studied art at Leicester College of Art and Leach Pottery. Exhib. Red Rose Guild, Leicester, Scarborough, St. Ives and Melrose Art Galleries, Derby, Nottingham, Crafts Centre Gt. Britain, Edinburgh Festival. Works in permanent collections: Leicester Museum, Argentine State Collection, Coll. Thomas Laughton, Esq., St. Anne's Church, Leicester. Address: The Chantry, Tuxford, nr. Newark-on-Trent. Signs work: "Joyce Haynes.
(Coaxed out of Google books snippet view only, so this would need checking)

Yes, I saw that one. It's unquestionably right, as it's fully signed "Joyce Haynes Scarborough 1951"  as well as having the seal mark. Not absolutely identical to the one the piece under discussion - the letters have definite serifs - but I think its probably the same person,