These very delicate liqueur glasses are 14cm. tall with 5cm. diameter bowls which are teal green/blue uranium glass. I've found some being sold from Germany which leads me to think they are German, the date given for them is anywhere from 1900-1940 but I can't confirm that. They have very little wear on the feet but they may only have been cabinet pieces. In the available catalogues online I've found German manufacturers who made similar ones but not an exact match.