Hi David,
yes - the 'guest' was me writing from the office - :?: :?: Obviously I can only log in from same IP address as profiled last week which is my home.
Well, just returned from my museum reading a bit in MOSER 1857 - 1997
IF your vase should in fact be Moser, it is designed by R. Eschler mid-Thirties. In 1934 he designed the famous drinking set 'Bar' and in 1936 a trinket set with square bases.
The latter is also pictured on cover of their 1946/48' catalogue (at that time 'Ceské Sklo formerly Moser')
Ceské Sklo have got registered Moser's coloured glass (Seltene Erden 'Neodym and Praseodym' colouring Beryl, Alexandrit, Royalit, Heliolit, Eldor and Carnelolit) again in 1945 and you can find Alexandrite vases also in their 1960's production.
Resulting from the great success of Eschler's design it is said to be produced still today.
Enjoy your vase - it is really a BEAUTY!