@Jespernordberg
I just bought a more modern, used, 'Vienna Style Bass' a couple of months ago so have been digging into a bit of research about them. There is an interesting article here about the history. You need premium but the free trial doesn't ask for payment details.
Here's an extract which describes the 'characteristics' of the Viennese Bass, (although if it's Hungarian made it's a Viennese 'style' bass, as is mine, since it needs to be made in Vienna to be a true Viennese bass, not that that changes how amazing these deep bodied instruments sound!)
Hope it helps.
In the 18th and 19th centuries, double basses made in Vienna had distinctive shapes and characteristics that gave them tremendous sound quality. Bass maker and restorer Alex Kanzian examines the evolution of these instruments, and how they differ from the norm
www.thestrad.com
"But what exactly are those typical Viennese characteristics? Very often, Viennese basses can not only be described by a few of those characteristics: they bear all of them. Summarised together, the most important aspects are the following:
- An elongated gamba contour at the corpus
- An elongated pegbox with a protruding section halfway down, notched in either two or three lines, with no pronounced heel
- Originally constructed as a five-stringed instrument, without tuning mechanisms
- No overhang on either the top or the back: the ribs are flush with the plates
- A butt-jointed (not inserted) neck, set in place with a dowel
- High arching of the top plate
- Straight f-holes, with deeply turned wings
- A flat back with a rather high bend, the plate bent to a convex shape
- Three braces on the back plate
- Purfling only in the top plate, none on the back
Of course, every maker will put their own aesthetic on to those points. Viennese makers were part of a guild, so a strict eye was kept on the executors of the craft. The usual exceptions aside, we see phenomenal workmanship and innovative designs to create a very strong instrument with an enormous sound."