In reply to markmcgladdery:
In Piola's 1991 coffee table book 'Le Mont Blanc 2', the chapter on the Aig Pierre-Joseph has four routes on Pierre-Joseph Pointe 2842m and five routes on Pointe 2940m. There are no real topos in the book, just very schematic sketches, and my scanner has died! I don't know if there are topos on line for the routes but I'll give you the names anyway so you can search. There might of course be other routes now, as well as Dark Cristal and Trotte Marmotte. There's probably more choice and better documented around the Couvercle
Pointe 2842.
La Zone G TD-
Voie Engelmann-Compte D+
Voie du Porche TD+
Voie Directe ED-
Pointe 2940.
Voie des Escaliers TD+
Dame Marmotte fait des Siennes ED-
Voie Centrale ED-
On n'a pas des Metiers Faciles ED-
Nonchalance d'Iguane ED