Symhonium, a generic term for plaing machines playing after a punched metal disc.
The disch activates tone springs, this instrument has 2 combs with tone springs.
The instrument is driven by a clockwork, the disc plays 45 seconds, and then starts
ower again. This symphonium has been made serviceable. Build ca 1900
From the disc some pegs point downwards, when passing the jagwheel, the peg turns the jagwheel, which again activates the tone spring.