C1930 Edwardian.
Czechoslovakian "Amphora" pottery was produced by a particular company in Teplitz. The interior of this vase is glazed white and the outside of the vase is matte finish. I think this piece is from the "Aquarium" series. There is a very tight hairline (which I have tried to photograph in image 3) Coming down from the lip of the vase, very hard to see.
Measures 33cms tall.