Hello Patrice,
I had a look at the PDF to get the date of my bass. I've got a red Arp?ge, fretted, 4 strings, tagged #168.
The PDF says 15/06/87 which sounds almost impossible to me because I'm quite sure I've bought it before 85. What's wrong in the list? The title in the list says "Manche Carbone and 90/10", maybe my bass was in a previous serie with no carbone at all (wood+phenowood+metal).
I cannot find information about Arp?ge and Passion basses any longer. Do you intend to make them available in the future?