John being very.... quiet there. Probably having a seething fit of the greens!
Coachbolt pontil mark - very early, very, very desirable, scarce blue and white swirls design - and it's a big flattened perfume bottle - a very desirable shape - and it's got it's stopper!
(Don't aks my why it's called a perfume bottle - the stoppers don't fit and it's far too big, and trying to pour liquid from it would be next to impossible.)