Rear View of the Main Stack in the
Welte Style 6 Concert Orchestrion

The main valve chest, or stack (as seen from the backside), in the Welte Style 6 Concert Orchestrion.

This rear view of the main stack was taken before restoration was complete. Note on the upper right deck that the red paper used to seal the valve chest has not yet been applied, permitting a rare inner view of the valve chambers. The motor pneumatics along the top side of each deck attach to the pipe chest (which is directly above) by thin wires.

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