Beautiful bike - great stuff.Here it is - very original apart from seatpost. I am presently in contact with a possible connection to the team at the time to see if we can determine which rider it belonged to. Based on geometry I am guessing Giovanni Lombardi who rode the TdF that year.
It is a Paris model, with distinctive shaped tubes, but pretty extreme geometry - very long and low. It has a rider number on BB in addition to frame serial no.
View attachment 576735
The custom geometry is very long - mine is 58.5 TT with a 56cm C-C seattube so a little stretched out.
I was looking at a PDM-Concorde and the claim was for a rider who was 5'6" but with a 58x58 frame with a repaint I thought it unlikely.