I just watched Lon Chaney in The Wolf Man. There is a scene at the gypsie encampment where a band is playing for the dancing woman. And there in the middle of the band is a hammered dulcimer. And what a hammered dulcimer! I have seen pictures of such instruments but nothing like this. The body is rectangular and deep. From the glimpse I had it seemed to be at least 6" deep. The player was seated and played fast. When the music ended he laid his hands on the strings to quiet the instrument. It must have been loud to compete with the other instruments, a fiddle and possibly a clarinet.