Usually tops and backs are just glued directly to the ribs and linings, nothing fancy. At various places and times in the past, though, sometimes makers locked the top and back in place.
In Cremona, the early makers glued the saddle onto the surface of the rib, extending it directly upwards through the top. These saddles are all gone, but once in a while, as on this beautiful Carlo Bergonzi violin, one gets to see the shadow of what originally was there,
People who aren’t intimate with violins don’t have to consider all of the things a maker has to. There are all sorts of details on a violin that have to be done in some intentional way. Not necessarily one way… I don’t mean that. I mean that when you have to do them, you find