A small section of the optical scan of the cylinder. The images shows an 8mm wide band of the cylinder flattened out. The crack is broad enough that the grooves do not line up across the schism. Special Processing techniques can still recover audio from the cylinder.
A cracked cylinder. There are two flexible strips of preservation-friendly plastic wrapped around cracked sections to help support the cylinder during scanning. The cylinder was recorded by Alfred Kroeber. It records a Wiyot song.