Hiya - welcome to the glass message board, hope you have a lot of fun here (as we all do) and that you get some glass identified. Your vases are quite handsome, stable and tall and they're a pair - which makes me think they could have been altar vases - heavy duty, come in pairs and likely to survive the years...
The greenish smoke colour points at anytime 1930s-1970s - though other periods are possible too. If British or German I could not say - but I'm sure someone will come up with further information.