Lynne
The earliest these could be would be around 1820; but they might just as easily be 100 years later. Reproduction Georgian glass items then went on to be mass produced in the 1930's; so no real way of determining what date these are from a photograph. There isnt a great demand for finger bowls and rinsers unless they are a set of 6; or are Irish, or have some other redeeming feature, such as an engraved coat of arms etc.
Trev.