Update, on further reading: the violin now under inspection does have some damage (spots) from ocean water, and two fissures.

If it is the genuine instrument, the fissures may have come about later, after the fiancée's own death. Any luthier could repair it, if that were desired. However, the music of doomsday, danse macabre, is best enjoyed in total silence, shudderingly staring at the relics.