X-Men #56 (1991) - 9.2 NM- *Twilight of the Gods* Onslaught
X-Men #55 (1991) - 9.6 NM+ *Invasion Onslaught
X-Men #53 (1991) - 9.2 NM- *1st Full Appearance Onslaught*
X-Men #54 (1991) - 9.2 NM- *Inquiring Minds* Onslaught
X-Men #40 (1991) - 9.0 VF/NM *The Killing Time*
X-Men #1A (1991) - 9.4 NM *Jim Lee Storm/Beast Cover*
X-Men #8 (1991) - 8.0 VF *1st Appearance Bella Donna*
X-Men #5 (1991) - 8.5 VF+ *Omega Red*
X-Men #11 (1991) - 9.6 NM+ *Classic Jim Lee Cover*
X-Men #4 (1991) - 6.0 FN *1st Appearance Omega Red*
X-Men #128 (1991) - 9.6 NM+ *1st Appearance Fantomex*
X-Men #51 (1991) - 7.0 FN/VF *Deathbound Train*
X-Men #13 (1991) - 9.6 NM+ *Hazardous Territory*
X-Men #54 (1991) - 9.4 NM *Inquiring Minds* Onslaught
X-Men #45 (1991) - 8.5 VF+ *Enemy of My Enemy*
X-Men #1D (1991) - 9.4 NM *Jim Lee Wolverine/Magneto Cover*
X-Men #1C (1991) - 9.2 NM- *Cyclops/Wolverine/Iceman Cover*
X-Men #2 (1991) - 9.2 NM- *Firestorm*
X-Men #8 (1991) - 7.0 FN/VF *1st Appearance Bella Donna* Newsstand
X-Men #1B (1991) - 9.0 VF/NM *Jim Lee Colossus/Gambit Cover*
X-Men #7 (1991) - 9.0 VF/NM *Inside Out*
