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X-Factor (1986 - 1998)
Marvel Comics Group, 179 issues

Issue	GD	VG	FN	VF	NM	NM/MT
1	$0.20	$2.90	$10.20	$20.10	$32.10	$169.00
2	$0.05	$0.50	$1.70	$6.75	$12.50	$62.20
3	$0.07	$0.65	$4.35	$10.40	$21.40	$57.50
4	$0.13	$1.85	$5.30	$9.95	$18.80	$87.40
4 Newsstand Edition	$0.05	$0.35	$1.45	$3.05	$5.15	$25.30
4 Canadian Price Variant	$0.06	$0.50	$1.90	$4.25	$7.35	$31.80
5	$0.20	$2.80	$8.70	$17.20	$31.10	$57.00
5 Newsstand Edition	$0.30	$3.60	$12.80	$31.00	$54.90	$220.00
6	$0.55	$5.20	$16.10	$32.80	$53.60	$252.00
6 Newsstand Edition	$1.85	$24.80	$31.10	$41.40	$78.90	$448.00
7	$0.06	$0.45	$1.80	$6.15	$8.20	$21.80
8	$0.05	$0.85	$3.40	$6.50	$12.00	$59.00
9	$0.05	$0.40	$2.80	$7.80	$16.00	$62.60
10	$0.05	$0.50	$1.90	$3.95	$7.90	$35.30
11	$0.05	$0.45	$1.70	$3.35	$6.05	$31.50
11 Newsstand Edition	$0.05	$0.45	$1.90	$3.80	$6.55	$32.30
12	$0.05	$0.30	$1.10	$2.45	$4.10	$20.10
13	$0.05	$0.55	$2.10	$4.45	$7.60	$38.20
14	$0.05	$0.30	$1.50	$3.20	$4.65	$21.00
15	$0.06	$0.55	$3.55	$10.60	$21.50	$82.00
16	$0.05	$0.30	$1.00	$2.05	$3.55	$18.30
17	$0.05	$0.40	$2.50	$8.35	$19.80	$65.00
18	$0.05	$0.30	$1.30	$2.55	$4.40	$21.60
19	$0.13	$1.75	$4.80	$9.85	$19.50	$41.20
20	$0.05	$0.30	$1.20	$2.40	$4.10	$20.10