Reconstruction  In progress

Triple mechanical drum with six sticks actuated by a single toothed cylinder itself actuated by a large toothed wheel. This drawing is clearly theoretical, but lets easily imagine the sound masses that this mechanism will produce by its movement.
It consists  a large drum with one flap, a medium-sized drum with two flaps, as well as a smaller one with three flaps.
It was  probably intended for use  scenic.

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