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X-Men #99
Marvel Comics, 6/76
Chris Claremont story1st appearance of Black Tom Cassidy.
Dave Cockrum & Frank Chiaramonte artSentinels appearance.
Dave Cockrum cover

 BooksCGC LabelCGC TotalAvg. Grade109.99.89.69.49.29.08.58.07.57.06.56.05.55.04.54.03.53.02.52.01.81.51.00.5
1 BOOKUniversal2,3728.290
0.00%		0
0.00%		74
3.1%		206
11.8%		342
26.2%		285
38.2%		326
52%		272
63%		218
73%		180
80%		151
87%		84
90%		80
94%		49
96%		35
97%		25
98%		18
99%		10
99%		14
100%		2
100%		0
100%		0
100%		1
100%		0
100%		0
100%
1 BOOKSignature1228.210
0.00%		0
0.00%		2
1.6%		18
16.4%		20
32.8%		8
39.3%		14
51%		9
58%		10
66%		14
78%		5
82%		9
89%		5
93%		3
96%		2
98%		0
98%		2
99%		0
99%		0
99%		1
100%		0
100%		0
100%		0
100%		0
100%		0
100%
1 BOOKRestored518.010
0.00%		0
0.00%		0
0.0%		2
3.9%		4
11.8%		8
27.5%		2
31.4%		10
51%		8
67%		6
78%		3
84%		3
90%		0
90%		2
94%		2
98%		1
100%		0
100%		0
100%		0
100%		0
100%		0
100%		0
100%		0
100%		0
100%		0
100%
1 BOOKQualified36.670
0.00%		0
0.00%		0
0.0%		0
0.0%		0
0.0%		0
0.0%		0
0.0%		1
33.3%		1
67%		0
67%		0
67%		0
67%		0
67%		0
67%		0
67%		0
67%		0
67%		1
100%		0
100%		0
100%		0
100%		0
100%		0
100%		0
100%		0
100%

TOTAL SUBMISSIONS (all types): 2,548
X-Men #99 (1976, Marvel Comics)
CGC Universal Grade Distribution
0%

0
10		0%

0
9.9		3%

74
9.8		9%

206
9.6		14%

342
9.4		12%

285
9.2		14%

326
9.0		11%

272
8.5		9%

218
8.0		8%

180
7.5		6%

151
7.0		4%

84
6.5		3%

80
6.0		2%

49
5.5		1%

35
5.0		1%

25
4.5		1%

18
4.0		0%

10
3.5		1%

14
3.0		0%

2
2.5		0%

0
2.0		0%

0
1.8		0%

1
1.5		0%

0
1.0		0%

0
0.5
cgcdata.com, last updated February 24, 2026

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"CGC Census Analysis" is provided by Greg Holland (©2003-2026).
Data is sourced from the public CGC census (© Certified Guaranty Company, LLC.)
Used with permission of CGC since 2003. Data is from July 01, 2001 to February 24, 2026.
A visual of CGC label changes through the years is available here.
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