CGCdata.com - Selected Census Data

Results for: title/:Secret:Agent:X:/pub/:Ace:/label/all/orderby/year -edit search-
(click on a book to isolate the current CGC Census information)

Books	CGC Label	CGC Total	Avg. Grade	10	9.9	9.8	9.6	9.4	9.2	9.0	8.5	8.0	7.5	7.0	6.5	6.0	5.5	5.0	4.5	4.0	3.5	3.0	2.5	2.0	1.8	1.5	1.0	0.5
1. Secret Agent X 1 (February 1934, Ace) Classic skull cover. Cover by William Reusswig	Universal	6	3.42																2	1		2				1
2. Secret Agent X 1 (February 1934, Ace)	Restored	1	3.00																			1
3. Secret Agent X 2 (March 1934, Ace) Cover by William Reusswig	Universal	3	3.83																	2	1
4. Secret Agent X 3 (April 1934, Ace) Cover by William Reusswig	Universal	3	6.00								1						1			1
5. Secret Agent X 4 (May 1934, Ace) Classic U.S. Capitol cover. Cover by William Reusswig	Universal	5	4.50											1			1	1				1		1
6. Secret Agent X 5 (June 1934, Ace) Classic Gorilla test tube skull cover. Cover by William Reusswig	Universal	4	5.38									1			1	1											1
7. Secret Agent X-9 1 (1934, David McKay Publishing) Dashiell Hammett story Alex Raymond cover & art	Universal	1	5.00															1
8. Secret Agent X 6 (August 1934, Ace) Cover by William Reusswig	Universal	1	6.00													1
9. Secret Agent X 6 (August 1934, Ace)	Restored	1	1.50																							1
10. Secret Agent X 7 (September 1934, Ace) Cover by William Reusswig	Universal	3	4.10												1					1					1
11. Secret Agent X 8 (October 1934, Ace) Cover by William Reusswig	Universal	3	5.17										1					1				1
12. Secret Agent X 9 (November 1934, Ace) Cover by William Reusswig	Universal	5	5.60									1			1		1	1				1
13. Secret Agent X 9 (November 1934, Ace)	Restored	1	4.50																1
14. Secret Agent X 10 (December 1934, Ace) Cover by William Reusswig	Universal	2	2.50																			1		1
15. Secret Agent X 11 (January 1935, Ace) Hypodermic needle cover. Cover by J. George Janes	Universal	4	3.75															2	1									1
16. Secret Agent X 12 (February 1935, Ace) Cover by J. George Janes	Universal	5	4.70									1							2	1			1
17. Secret Agent X 13 (March 1935, Ace) J. George Janes cover	Universal	4	5.88										1				2	1
18. Secret Agent X 14 (April 1935, Ace) Cover by J. George Janes	Universal	5	5.40													3		1		1
19. Secret Agent X 15 (June 1935, Ace) Cover by J. George Janes Hugh B. Cave story	Universal	2	5.50											1						1
Books	CGC Label	CGC Total	Avg. Grade	10	9.9	9.8	9.6	9.4	9.2	9.0	8.5	8.0	7.5	7.0	6.5	6.0	5.5	5.0	4.5	4.0	3.5	3.0	2.5	2.0	1.8	1.5	1.0	0.5
20. Secret Agent X 16 (July 1935, Ace)	Universal	2	4.25													1							1
21. Secret Agent X 16 (July 1935, Ace)	Restored	1	6.00													1
22. Secret Agent X 17 (August 1935, Ace) Cover by J. George Janes	Universal	4	4.50														2			1		1
23. Secret Agent X 18 (September 1935, Ace) Cover by J. George Janes	Universal	4	3.63																1	1	1		1
24. Secret Agent X 19 (October 1935, Ace) Cover by J. George Janes	Universal	2	5.75												1			1
25. Secret Agent X 20 (November 1935, Ace) Cover by J. George Janes	Universal	2	6.50											1		1
26. Secret Agent X 21 (December 1935, Ace)	Qualified	1	4.50																1
27. Secret Agent X 22 (January 1936, Ace) Cover by J. George Janes	Universal	3	5.67									1				1						1
28. Secret Agent X 23 (February 1936, Ace) Cover by J. George Janes	Universal	3	4.33															1		2
29. Secret Agent X 24 (March 1936, Ace) Skeleton cover. Cover by William F. Soare	Universal	3	6.33								1						1	1
30. Secret Agent X 24 (March 1936, Ace)	Restored	1	2.50																				1
31. Secret Agent X 25 (April 1936, Ace) Cover by William F. Soare	Universal	1	8.50								1
32. Secret Agent X 26 (June 1936, Ace) Cover by William F. Soare	Universal	2	6.50								1								1
33. Secret Agent X 27 (August 1936, Ace) Cover by David Berger	Universal	2	8.50								2
34. Secret Agent X 28 (October 1936, Ace) Cover by William E. Luberoff	Universal	3	3.17															1					1	1
35. Secret Agent X 29 (December 1936, Ace) Cover by William E. Luberoff	Universal	4	5.00											1				1	1		1
36. Secret Agent X 30 (February 1937, Ace) Cover by William E. Luberoff	Universal	2	5.00												1						1
37. Secret Agent X 31 (April 1937, Ace) Cover by Rafael DeSoto	Universal	4	5.00									1					1		1					1
38. Secret Agent X 32 (June 1937, Ace) Cover by William E. Luberoff	Universal	3	4.83										1						1				1
39. Secret Agent X 33 (August 1937, Ace) Cover by Norman Saunders	Universal	2	4.25														1					1
Books	CGC Label	CGC Total	Avg. Grade	10	9.9	9.8	9.6	9.4	9.2	9.0	8.5	8.0	7.5	7.0	6.5	6.0	5.5	5.0	4.5	4.0	3.5	3.0	2.5	2.0	1.8	1.5	1.0	0.5
40. Secret Agent X 34 (October 1937, Ace) Cover by Rafael DeSoto	Universal	1	5.00															1
41. Secret Agent X 35 (December 1937, Ace) Cover by William F. Soare	Universal	5	4.20														1	1	1	1				1
42. Secret Agent X 36 (February 1938, Ace) Cover by Rafael DeSoto	Universal	2	6.00										1						1
43. Secret Agent X 37 (April 1938, Ace) Cover by Ray Quigley	Universal	3	5.17										1		1											1
44. Secret Agent X 38 (June 1938, Ace) Cover by Norman Saunders	Universal	4	6.88									2			1			1
45. Secret Agent X 39 (September 1938, Ace) Cover by Leo Morey	Universal	5	6.00										1	2					1	1
46. Secret Agent X 40 (December 1938, Ace) Cover by Ray Quigley	Universal	4	4.75										1		1						1					1
47. Secret Agent X 40 (December 1938, Ace)	Restored	1	3.00																			1
48. Secret Agent X 41 (March 1939, Ace) Cover by Norman Saunders Robert Leslie Bellem story	Universal	4	4.63									1							1	1				1
49. Secret Agent X-9 of the F.B.I. 18 Australia (1965, Gordon and Gotch)	Universal	1	7.50										1
50. Secret Agent X-9 18 Australia (1966, Page Publications) Keith Chatto cover	Universal	2	9.40			1				1

Books	CGC Label	CGC Total	Avg. Grade	9.8	9.6	9.4	9.2	9.0	8.5	8.0	7.5	7.0	6.5	6.0	5.5	5.0	4.5	4.0	3.5	3.0	2.5	2.0	1.8	1.5	1.0	0.5
43 BOOKS	Universal	133	5.08	1 0.8%	0 0.8%	0 0.8%	0 0.8%	1 1.5%	6 6.0%	8 12.0%	8 18.0%	6 22.6%	8 28.6%	8 34.6%	11 42.9%	16 55%	14 65%	15 77%	5 80%	9 87%	5 91%	6 95%	1 96%	3 98%	1 99%	1 100%
6 BOOKS	Restored	6	3.42	0 0.0%	0 0.0%	0 0.0%	0 0.0%	0 0.0%	0 0.0%	0 0.0%	0 0.0%	0 0.0%	0 0.0%	1 16.7%	0 16.7%	0 16.7%	1 33.3%	0 33.3%	0 33.3%	2 67%	1 83%	0 83%	0 83%	1 100%	0 100%	0 100%
1 BOOK	Qualified	1	4.50	0 0.0%	0 0.0%	0 0.0%	0 0.0%	0 0.0%	0 0.0%	0 0.0%	0 0.0%	0 0.0%	0 0.0%	0 0.0%	0 0.0%	0 0.0%	1 100%	0 100%	0 100%	0 100%	0 100%	0 100%	0 100%	0 100%	0 100%	0 100%

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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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