Figure 11. Figures 10, 11. (10a) High-resolution transaxial CT scan of a Stradivarius violin shows a wooden cleat (arrow) glued to the inside surface of the front plate. (10b) High-resolution coronal CT scan of the front plate shows multiple wooden cleats (arrowheads) and the large, round wooden patch (open straight arrow), which involves almost the entire middle bout of the violin. Note the relationship between the f-holes, the bass bar (solid curved arrow), the sound post (solid straight arrow), and the foot of the bridge distal to the sound post (open curved arrow). (11) High-resolution transaxial CT scan of the front plate of a high-quality Venetian cello shows the typical appearance of an internal wooden patch (bracket) and its interface with the original front plate (arrows). Note the discontinuity between the grain pattern of the original front plate and that of the embedded wooden patch. This patch occupied nearly 50% of the thickness of the original front plate.