I pretty much convinced it's a Czech Harrtil vase, the pattern of the glass fibres looks similar to me as the ones I've seen in books and online. According to Mark Hill, three different designers were involved with the vase shapes of the Harrtil range: Milan Metelak, Milena Lishkova and Marie Stahlikova. Is it known which one of them designed this particular shape?
The dimensions are 18.5 cm high, 7.5 cm across at the rim, and 6.5 cm across at the base. The base has more than enough wear for it to be around since the 1950s.
Astrid