Howdy,
Did the stem actually say, "Peugeot" on it? Then it is probably a Philliips Professional stem and not an AVA stem. These were forged stems with an allen bolt binder found on the PX-10le. The PX-10le also had Atax/Phillips Professional bars. Very nice. Both were much nicer than the AVA, but the stem still is probably not salvageable.
Regards,
John "Hopes his Phillips stem holds up" Taglia Chicago