I think it is very attractive - wish it was mine, at least for a while, and it has that look of being very interesting, perhaps. Are you calling it a preserve pot because it has a hole in the lid for a spoon? (or does it still contain jam

) - and I take it you don't have a spoon? Regret that the EPNS won't help, probably, but wud have been of use had you descirbed the base, and said whether there is any wear or not (evidence of wear - or otherwise - can be very improtant in dating).