pressglas-korrespondenz # 2008-1 reached me today
attached was a catalogue of
Rheinische Glaswerke Weber & Fortemps mbh SINDORF (Germany) 1935
on page 14 we see a candlestick holder similar to yours, but very much more Art Déco, the center stem is straight, but the base is same and it has got two 'handles' too

Can some other reader of PK give further hints, please?