Uncanny X-Men ( 1st Series)
X-Men #8 CBCS 4.5 Off-White to White pages 1st appearance of Unus the Untouchable Story by Stan Lee Cover and art by Jack Kirby and Chic Stone
X-Men #12 CGC 4.5 Cream to Off-White pages Origin of Professor X Origin and 1st appearance of Juggernaut Story by Stan Lee Art by Alex Toth and Vince Colletta Cover by Jack Kirby
X-Men #16 VG/FN (5.0) 3rd appearance of the Sentinels Story by Stan Lee Art by Jack Kirby, Werner Roth, and Dick Ayers Cover by Jack Kirby
X-Men #17 VG/FN (5.0) Story by Stan Lee Art by Jack Kirby (layouts), Werner Roth, and Dick Ayers Cover by Jack Kirby
X-Men #26 GD/VG (3.0) Story by Roy Thomas Cover and art by Werner Roth and Dick Ayers
X-Men #38 GD/VG (3.0) “Origins of the X-Men” back up stories begin Story by Roy Thomas Art by Don Heck and George Roussos Cover by Dan Adkins
X-Men #46 GD/VG (3.0) Origin of Iceman Story by Gary Friedrich Art by Don Heck, Werner Roth, and John Tartaglione Cover by Don Heck
X-Men #47 GD+ (2.5) Stories by Gary Friedrich and Arnold Drake Art by Don Heck and Werner Roth, and John Tartaglione Cover by Don Heck
X-Men #55 VG+ (4.5) Story by Roy Thomas Art by Don Heck, Werner Roth, and Vince Colletta Cover by Barry Windsor-Smith
X-Men #59 VG+ (4.5) Story by Roy Thomas Art by Neal Adams and Tom Palmer Cover by Neal Adams
X-Men #60 FN- (5.5) 1st appearance of Sauron Story by Roy Thomas Art by Neal Adams and Tom Palmer Cover by Neal Adams
X-Men #61 VG/FN (5.0) Story by Roy Thomas Art by Neal Adams and Tom Palmer Cover by Neal Adams
X-Men #63 VF- (7.5) 1st appearance of Lorelei (Lani Ubana) Story Roy Thomas Cover and art by Neal Adams and Tom Palmer
X-Men #FN FN (6.0) 1st appearance of the Mutant-Master Story by Roy Thomas Cover and art by Ross Andru and Don Heck
X-Men #65 VG+ (4.5) Story by Denny O’Neil Art by Neal Adams and Tom Palmer Cover by Marie Severin and Tom Palmer
X-Men #84 VG/FN (5.0) Story by Roy Thomas Cover and art by Ross Andru and George Roussos