Hi Martyn - in the absence of comments on height - these might be for wine, but equally they might be sherry if a little smaller - do they look similar in height to a standard sherry glass? Drinking sherry in the later C19 was popular judging by the quantity of glasses made then.
Victorian drinking glasses are mostly impossible to date with accuracy - my opinion would be that these are from somewhere in the second half of the C19, but beyond that it really is only guesswork - serious collectors tend to lose interest after 1830 (the end of George IV), and this is reflected in the absence of books devoted to Victorian drinking glasses. Pontil scars often remain unpolished, and feet can vary a lot in diameter, so neither are reliable factors to help with dating, and the Victorians copied a great deal which confuses.
Both glasses have what appears to be slice cutting/cut hollows - a common form of decoration which occurs on pieces showing in S. & F. (c. 1880) and both will of course be hand made in three parts and the swirl effect seen on the bowls is a good sign of a hand made glass.
The first glass has a round funnel bowl - the other is a bell bowl, and is the more interesting and suggests possibly a slightly earlier date than the funnel bowl. What might lift these out of the ordinary would be if they were good lead glass construction - if they're flicked they would ring, as am sure you know. Anyway, they're good finds and antiques that you can actually use.
Sorry this is unhelpful - it really is a nebulous area though a good collecting period and avoids the expense of glasses from eighty years earlier
