An unknown disc music box has shown up.

Who knows about a crank-wound disc music box, with single comb and
two bells, disc diameter 20,5 cm (10 inches)?  Neither the box nor
the movement shows any signature.

The discs are driven from the center. Some of the discs which came with
the box show two angels sitting on an anchor and the name HARMONIEUSE.

Could somebody give me more information about this disc music box?

Thanks!
Christian Greinacher
Germany