Oooo, a part II Skrdlovice thread. Michael your vase pair is a nice start!
The vase I think you are referring to is a J. Zertova, designed in 1968. It is one of my very favourite pieces from my collection. (I'm currently bidding on a green one which I do hope to win.)
Forgive me, but my photos are smallish and a bit blurred. I've been fighting with my camera. There are too many buttons and too little space in my head to know what I'm doing. Sigh.