Could this flask be Derek Clarkson? No makers mark - possibly Eeles Pottery

Always helps to have a photo of the base even if there’s no mark

I think it’s Eeles family pottery

Looks like it could be thanks Naomi.

Not anything much like Derek Clarkson's decoration.

Pattern not the usual but the colours are the same could be a one off especially the Grey colour. Can't find any similar pottery other than Derek Clarkson.

I think Naomi is correct. They were a busy pottery with all the family making pieces. They did a very large number of different styles. You are not going to find a fraction of the different work they did in Google photos The Brown branch decoration reminds of David Eeeles.

Probably is eeles but still could be Derek Clarkson.

Without a mark it is quite difficult to to identify a piece by style alone.