This one has me totally confused, I thought this was a lovely clean crisp example of a wasp trap but I think it would be impossible for the wasps to be trapped. If the item was standing as meant to be it has no means for the wasp to get underneath nor would it be able to get to the sugared water/old fruit as it would bang its head. they could go in the top way but quite easily fly out again. I have found a marking which I think is acid etched in quite fancy lettering and numbering. Think it reads either HG5 or H65 then M3 underneath. Now this is where someone tells me it is something to do with an oil lamp? Quite a heavy item and not of thin glass also quite a large item. I cannot measure unfortunately as the DD still has the tape measure somewhere but my guess is roughly. Top opening approx 6inch wide, bottom bulb 10inch wide, bottom opening 3inch wide, height maybe10-12inch sorry they really are rough measurements.
Any thoughts please
TIA