Sorry if this is a bit obvious - but both of my Miller's books are presently out on loan (moral of the story is don't lend books, because pound to a penny you will THEN need them) - but I'm sure that this design occurs in one of their volumes. Quite a nice ice blue - optically ribbed - and about 135mm tall, with a plain flat base (with quite a lot of wear as you can see) - the top rim is ground. Not sure what it wud have been used for - perhaps for minnows or maybe flowers?

. With that sort of wear looks as tho it might date to the 50s or 60s maybe. Grateful if anyone does recognize the design, and thanks for looking, and if it is English, thanks in advance to the Mod for moving the post. Paul S.