I have finally identified a restaurant capable of making the L'Oreiller de la Belle Aurore dish described in Lucien Tendret's (sp) "La Table au Pays de Brillat-Savarin" (The dining table in the country of Brillat-Savarin)
The L'Oreiller dish is one of the three famous pates of Belley ("Les Trois Pâtés de Belley").
The restaurant is Gerard Besson, which recently lost its second Michelin star. The dish is for a minimum of two people, and requires advance notice. Besson is known for game, so it's a good venue for having the dish. I didn't ask how much the dish was, as the price became irrelevant once its availability was identified.
This dish contains: veal, partridge, rabbit, chicken, duck, porc and sweetbreads. I have sky-high expectations of this dish.