Hello Joe, I can give you some information about your automaton.
From the marking it was made by Michel Marcu, who lives in France and
has a museum in Lusigny-sur-Barse called "Musee des automates Marcu".
I believe he is no longer making automatons.
What you have is a monkey smoker made to resemble ones made by the
famous Parisian makers more than 100 years ago. If you put a lit
cigarette in his holder, the tubes you describe will convey the smoke
to the bellows and then out to his mouth. There should be other
actions-perhaps of his arms and his head.
I am an automaton collector and occasional repairer and restorer.
I have three smokers, but much earlier versions, and they all work
similarly. If you'd like to discuss the subject further, you can
either e-mail me or call at 772-340-0652.
Hope this helps,