Hello, this model is called 'Cedre'.
It appears in the catalogue of 1953 and I also have it in the 1956 and 1958 catalogue but all are 23 cm high, so a little bit smaller than your vase.
In the 1973 catalogue it is slightly larger, at 25 cm so I guess it dates from that period but I don't know how long it was still in production for after that. I have no documentation from the 80ies and it doesn't appear anymore in the 90ies...they must have worn the mould out by then
Like the other vases you have shown here, it is pressed and at VSL they always called this semi-crystal, glass that contains slightly less lead than their cut pieces.
Hope this helps,
Anne.