As I have mentioned before, bandurrias used to be as commonly made in Granada as guitars so makers had to be very familiar with them.  These days none of the good guitar-makers build them any more and you don’t see them taking repairs either.  A friend of mine inherited a bandurria from his grandfather and since it was made in a relatively well-known valencian factory in 1924 I agreed to restore it. Both the back and top had some minor cracks and the back had shrunk so much that it no longer rested on the reinforcements.  The choices for solving this last problem are reducing the perimeter of the sides or increasing the surface area of the back.  The bridge was coming off and when I took it off completely I saw that it had torn off once before taking a goodly amount of top wood with it and then been glued haphazardly back on.  Of course the frets were sticking out and felt like the neck was wrapped with barbed wire and the last of the problems rendering this instrument unplayable were the 12 wooden pegs! which were badly adjusted and cracked.   A challenge to be sure but I asked one of the makers here (José López Bellido) for some ideas and the specifications that a bandurria should stick to and it looks like it will be a musical instrument once again in short order.