neither do I, and I suspect this is as far as you're going to get

You don't give a size - but my opinion is that they are quite possibly finger bowls - such things were still being made officially up to the 1950s ............... created originally to wash the fingers as much historic eating meant holding food in your hands ............ as an item of table glass these things go back to the early C18.
Machine acid etching has been a commonly used method of decorating inexpensive glass since the middle of he C19 or thereabouts, though I'd suggest these are vastly younger - apparently acid etching is still used on cheaper glass - and yours might have been made in the last 10 - 20 years.
Unless you have the sort of wear that might indicate an age of a century or so, or you know their provenance for certain, then my opinion would be not Edwardian.
