Is this European olivewood?
I would be interested in see what the OP answer will be but, from his location and the fact that, Italy has the most and best Olive wood trees in the world, particularly in the South so, this would be a typical piece of wood being cut from one of those old trees, near the tree butt/joint to the root ball...!
That is exactly what I find in the trees that I have been cutting/salvaging in this area as one of the first areas the Australian Settlers selected to come to, due to the identical 4 season weather as most European countries.
Some of those trees I processed/have, are over 150 years old and this is the very reason why I haven shown what sort of wood they are make of/contain from the smallest of branches to the root ball that can be the size of a small car.
While the grain is very accurate, the pics colour is not, there is too much brightness in them, making the wood look a lot lighter in colours than it is.
In fact, wasn't that long ago that I went through through lots of troubles to photograph a piece of Olive root that I turned into a bowl/vessel, the colours just don't seem to come right from the cameras, I don't know exactly why so, I'm not a bit surprised with these pics colours, easy to do...!
I hope this adds a little extra on your Olive wood knowledge, and I'm looking forwards to know how close I am with my "interpretation" of the wood used...!
Cheers
George