Stoneware globe studio fish vase, D mark, maybe Tony Dasent

Quite a heavy piece, speckled grey glaze, painted in brown.
Marked with a shield or spade shape mark but details filled with glaze.
Not many potters used a mark this shape.

Tony Dasent - lovely pots but shape looks more rounded than this mark. I had a look in book at marks with a shield shape - Andre Palin, John Leach, Lyndon Thomas & Own Thorpe were ones I checked, but none look right for this mark. I’ve taken a hopefully better photo and I can see a shape at one end shown in drawing. Looks older, 1960s or so.

? any good with ID before it’ heads to market?

Closest I can find is Darren Ellis. Apparently his early mark was the base of a cigarette lighter