Hi
These appear to be cruet bottles, which would have been fitted with metal closures and sold as a set.
The glass is clear and has been flashed or stained (see http://www.patternglass.com/FlashCaseStain/FlashCaseStain.htm for more info on this technique.
They are most likely of eastern European origin and date from the late 19th or early 20th century. Glass of this type is collectively called "Bohemian."