I had a closer look around the frame but no obvious frame numbers or stamps. Dropouts are Gipiemme.
Groupset is the original Shimano 600, seatpost is Campagnolo, saddle is a Rolls, headset is Stronglight alloy, stem is Cinelli coupled with Cinelli Giro bars.
What's number 2? It's got the same paint as a 'Raymond poulidor' badged bike I used to have. (Made by mercier).