Extremly rare Duplex Cylinder Music Box unrestored

VERY rare type of a Cylinder Music Box. Not restored. Is at this time for restoring in Switzerland.
You see here the Prototype, that Alfred Junod build at first! Two engine-turned zithers (missing at making this video).
With 2 parallel counter-rotating 10-air cylinders, twin combs (complete), butterfly-wing governor.
Arthur Ord-Hume attributes the first patent of a 'duplex' musical box to Alfred Junod in around 1887, with double-cylinder machines by Charles Paillard, Mermod Frères, Ami Rivenc (and presumably other makers) appearing on the market soon afterwards. Built to increase volume and resonance in the same way as a single-cylinder "sublime harmony" musical box, the duplex musical box featured a pair of identically-arranged cylinders playing simultaneously on two combs. The Symphonion Musikwerke of Leipzig sought to create a similar effect with its triple-disc "Eroica" musical box. A mechanical music spectacle in unrestored playing condition!
When the music box is restored, you can see and hear it at this place.
Before Restauration, after Restauration👍

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WOW

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👏🏾👏🏾👏🏾👏🏾👏🏾👏🏾

[@ptmusicalboxes]

its Ben Hur Chariot Race written in 1894.

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it cannot be 1903, when the box is from 1894/97