Stridente were a fairly prolific, so probably big, luthiery company from Naples Italy, (well there is still a lot of them about?) I can't see anything about them being in business today and all of the others I have seen are dated from before the first world warI was given the instrument by my Brother in Law's Sister and she inherited it from her Father in Law. She told me he got it before world war two but that's all she knows.
The instrument itself has a Spruce Soundboard and a rosewood bowl, and neck. The butterfly is all inlay and quite tasteful. It also has one hell of a head stock to accommodate the extra strings and if it were in reasonable to good condition and playable it would be wonderful. Sadly its in very poor shape with so many major faults I won't list them all here but it is completely unplayable the shape it is and I'm not sure it ever will be again? I'll ask a couple of luthiers and see what they think?Sadly the consensus is "it'll never play again" a bit like my football career