#1

Dec 1st, 1979

Reprints X-Men 1

#1B

Dec 1st, 1979

Reprints X-Men 1

#2

Jan 1st, 1980

#2B

Jan 1st, 1980

#3

Feb 1st, 1980

#3B

Feb 1st, 1980

#4

Mar 1st, 1979

#4B

Mar 1st, 1979

#5

Apr 1st, 1980

#5B

Apr 1st, 1980

#6

May 1st, 1980

#6B

May 1st, 1980

#7

Jun 1st, 1980

#7B

Jun 1st, 1980

#8

Jul 1st, 1980

#8B

Jul 1st, 1980

#9

Aug 1st, 1980

#9B

Aug 1st, 1980

#10

Sep 1st, 1980

#10B

Sep 1st, 1980

#11

Oct 1st, 1980

#11B

Oct 1st, 1980

#12

Nov 1st, 1980

#12B

Nov 1st, 1980

#13

Dec 1st, 1980

#13B

Dec 1st, 1980

#14

Jan 1st, 1981

#14B

Jan 1st, 1981