First two LPs are called "Les Introuvables", and feature tracks with Roger Guérin (quartet, 1959), some trios with Guy Pedersen and Daniel Humair, Gilbert Rovere and Charles Bellonzi, Cesarius Alvim and Humair, Rovere and Humair and two pieces with a big band (one from 1962, the other from 1985), plus three solo tracks.
The third LP is subtitled "Standards en solo... ou comment s'en débarrasser", and has six tracks from 1974 to 1982.
The last LP ("Rencontres") has duo tracks with, in turn, Grappelli, Konitz, John Lewis, Didier Lockwood, NHOP and Jean-Louis Chautemps.
First LP is about 44 minutes long; the second is 48, the third is 37 and the fourth is 40. Something must be missing anyway.
The cover of the LP box set is the white one.
luca