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Detective Comics #599
	DC Comics, 4/89

Sam Hamm story, Denys Cowan cover		1st appearance of Henri Ducard.
Denys Cowan, Dick Giordano &		Pin-ups by Bob Kane,
Frank McLaughlin art		Kyle Baker & Mike Mignola.

Books	CGC Label	CGC Total	Avg. Grade	Census Date	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. Detective Comics 599 (4/89, DC Comics)	Universal	1	9.60	July 17, 2003				1
2. Detective Comics 599 (4/89, DC Comics)	Universal	1	9.60	January 08, 2004				1
3. Detective Comics 599 (4/89, DC Comics)	Universal	1	9.60	July 12, 2004				1
4. Detective Comics 599 (4/89, DC Comics)	Universal	2	9.60	December 16, 2004				2
5. Detective Comics 599 (4/89, DC Comics)	Universal	2	9.60	July 07, 2005				2
6. Detective Comics 599 (4/89, DC Comics)	Universal	4	9.60	January 27, 2006				4
7. Detective Comics 599 (4/89, DC Comics)	Universal	4	9.60	June 20, 2006				4
8. Detective Comics 599 (4/89, DC Comics)	Universal	5	9.60	January 10, 2007				5
9. Detective Comics 599 (4/89, DC Comics)	Universal	8	9.68	July 05, 2007			3	5
10. Detective Comics 599 (4/89, DC Comics)	Universal	11	9.67	January 09, 2008			5	5	1
11. Detective Comics 599 (4/89, DC Comics)	Universal	13	9.66	July 01, 2008			6	5	2
12. Detective Comics 599 (4/89, DC Comics)	Universal	17	9.69	January 13, 2009			10	5	2
13. Detective Comics 599 (4/89, DC Comics)	Universal	18	9.70	June 24, 2009			11	5	2
14. Detective Comics 599 (4/89, DC Comics)	Universal	20	9.70	December 15, 2009			12	6	2
15. Detective Comics 599 (4/89, DC Comics)	Universal	21	9.70	June 14, 2010			12	7	2
16. Detective Comics 599 (4/89, DC Comics)	Universal	21	9.70	December 27, 2010			12	7	2
17. Detective Comics 599 (4/89, DC Comics)	Universal	21	9.70	June 27, 2011			12	7	2
18. Detective Comics 599 (4/89, DC Comics)	Universal	21	9.70	January 02, 2012			12	7	2
19. Detective Comics 599 (4/89, DC Comics)	Universal	21	9.70	July 02, 2012			12	7	2
Books	CGC Label	CGC Total	Avg. Grade	Census Date	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. Detective Comics 599 (4/89, DC Comics)	Universal	21	9.70	December 31, 2012			12	7	2
21. Detective Comics 599 (4/89, DC Comics)	Universal	21	9.70	June 22, 2013			12	7	2
22. Detective Comics 599 (4/89, DC Comics)	Universal	21	9.70	December 31, 2013			12	7	2
23. Detective Comics 599 (4/89, DC Comics)	Universal	21	9.70	July 01, 2014			12	7	2
24. Detective Comics 599 (4/89, DC Comics)	Universal	22	9.69	December 30, 2014			12	8	2
25. Detective Comics 599 (4/89, DC Comics)	Universal	24	9.68	June 30, 2015			12	9	3
26. Detective Comics 599 (4/89, DC Comics)	Universal	25	9.68	December 29, 2015			13	9	3
27. Detective Comics 599 (4/89, DC Comics)	Universal	27	9.67	June 28, 2016			14	9	3	1
28. Detective Comics 599 (4/89, DC Comics)	Universal	27	9.67	December 27, 2016			14	9	3	1
29. Detective Comics 599 (4/89, DC Comics)	Universal	30	9.65	June 27, 2017			15	9	4	2
30. Detective Comics 599 (4/89, DC Comics)	Universal	30	9.65	January 02, 2018			15	9	4	2
31. Detective Comics 599 (4/89, DC Comics)	Universal	30	9.65	July 03, 2018			15	9	4	2
32. Detective Comics 599 (4/89, DC Comics)	Universal	30	9.65	January 01, 2019			15	9	4	2
33. Detective Comics 599 (4/89, DC Comics)	Universal	30	9.65	July 02, 2019			15	9	4	2
34. Detective Comics 599 (4/89, DC Comics)	Universal	38	9.66	December 31, 2019			20	11	5	2
35. Detective Comics 599 (4/89, DC Comics)	Universal	41	9.65	June 30, 2020			21	12	5	3
36. Detective Comics 599 (4/89, DC Comics)	Universal	47	9.61	December 29, 2020			23	12	6	5		1
37. Detective Comics 599 (4/89, DC Comics)	Universal	52	9.63	June 29, 2021			28	12	6	5		1
38. Detective Comics 599 (4/89, DC Comics)	Universal	62	9.62	December 28, 2021			32	16	7	6		1
39. Detective Comics 599 (4/89, DC Comics)	Universal	70	9.58	June 28, 2022			33	19	9	6		2	1
Books	CGC Label	CGC Total	Avg. Grade	Census Date	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. Detective Comics 599 (4/89, DC Comics)	Universal	82	9.51	December 27, 2022			33	23	14	7	1	2	1				1
41. Detective Comics 599 (4/89, DC Comics)	Universal	89	9.49	June 27, 2023			35	25	14	9	1	2	1	1			1
42. Detective Comics 599 (4/89, DC Comics)	Universal	91	9.47	December 31, 2023			36	25	14	9	1	2	1	1	1		1
43. Detective Comics 599 (4/89, DC Comics)	Universal	100	9.46	June 24, 2025			41	25	16	9	1	2	3	1	1		1
44. Detective Comics 599 (4/89, DC Comics)	Universal	100	9.46	July 01, 2025			41	25	16	9	1	2	3	1	1		1
45. Detective Comics 599 (4/89, DC Comics)	Universal	100	9.46	July 15, 2025			41	25	16	9	1	2	3	1	1		1
46. Detective Comics 599 (4/89, DC Comics)	Universal	101	9.45	July 22, 2025			41	25	17	9	1	2	3	1	1		1
47. Detective Comics 599 (4/89, DC Comics)	Universal	101	9.45	July 29, 2025			41	25	17	9	1	2	3	1	1		1
48. Detective Comics 599 (4/89, DC Comics)	Universal	101	9.45	August 05, 2025			41	25	17	9	1	2	3	1	1		1
49. Detective Comics 599 (4/89, DC Comics)	Universal	101	9.45	August 12, 2025			41	25	17	9	1	2	3	1	1		1
50. Detective Comics 599 (4/89, DC Comics)	Universal	101	9.45	August 19, 2025			41	25	17	9	1	2	3	1	1		1
51. Detective Comics 599 (4/89, DC Comics)	Signature	1	9.40	December 31, 2013					1
52. Detective Comics 599 (4/89, DC Comics)	Signature	1	9.40	July 01, 2014					1
53. Detective Comics 599 (4/89, DC Comics)	Signature	1	9.40	December 30, 2014					1
54. Detective Comics 599 (4/89, DC Comics)	Signature	1	9.40	June 30, 2015					1
55. Detective Comics 599 (4/89, DC Comics)	Signature	2	8.95	December 29, 2015					1			1
56. Detective Comics 599 (4/89, DC Comics)	Signature	3	8.80	June 28, 2016					1			2
57. Detective Comics 599 (4/89, DC Comics)	Signature	3	8.80	December 27, 2016					1			2
58. Detective Comics 599 (4/89, DC Comics)	Signature	3	8.80	June 27, 2017					1			2
59. Detective Comics 599 (4/89, DC Comics)	Signature	3	8.80	January 02, 2018					1			2
Books	CGC Label	CGC Total	Avg. Grade	Census Date	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
60. Detective Comics 599 (4/89, DC Comics)	Signature	3	8.80	July 03, 2018					1			2
61. Detective Comics 599 (4/89, DC Comics)	Signature	6	9.23	January 01, 2019			1	2	1			2
62. Detective Comics 599 (4/89, DC Comics)	Signature	6	9.23	July 02, 2019			1	2	1			2
63. Detective Comics 599 (4/89, DC Comics)	Signature	7	9.29	December 31, 2019			1	3	1			2
64. Detective Comics 599 (4/89, DC Comics)	Signature	7	9.29	June 30, 2020			1	3	1			2
65. Detective Comics 599 (4/89, DC Comics)	Signature	7	9.29	December 29, 2020			1	3	1			2
66. Detective Comics 599 (4/89, DC Comics)	Signature	7	9.29	June 29, 2021			1	3	1			2
67. Detective Comics 599 (4/89, DC Comics)	Signature	7	9.29	December 28, 2021			1	3	1			2
68. Detective Comics 599 (4/89, DC Comics)	Signature	7	9.29	June 28, 2022			1	3	1			2
69. Detective Comics 599 (4/89, DC Comics)	Signature	9	9.27	December 27, 2022			1	3	2		1	2
70. Detective Comics 599 (4/89, DC Comics)	Signature	9	9.27	June 27, 2023			1	3	2		1	2
71. Detective Comics 599 (4/89, DC Comics)	Signature	9	9.27	December 31, 2023			1	3	2		1	2
72. Detective Comics 599 (4/89, DC Comics)	Signature	12	9.40	June 24, 2025			4	3	2		1	2
73. Detective Comics 599 (4/89, DC Comics)	Signature	12	9.40	July 01, 2025			4	3	2		1	2
74. Detective Comics 599 (4/89, DC Comics)	Signature	12	9.40	July 15, 2025			4	3	2		1	2
75. Detective Comics 599 (4/89, DC Comics)	Signature	12	9.40	July 22, 2025			4	3	2		1	2
76. Detective Comics 599 (4/89, DC Comics)	Signature	12	9.40	July 29, 2025			4	3	2		1	2
77. Detective Comics 599 (4/89, DC Comics)	Signature	12	9.40	August 05, 2025			4	3	2		1	2
78. Detective Comics 599 (4/89, DC Comics)	Signature	12	9.40	August 12, 2025			4	3	2		1	2
79. Detective Comics 599 (4/89, DC Comics)	Signature	12	9.40	August 19, 2025			4	3	2		1	2
Books	CGC Label	CGC Total	Avg. Grade	Census Date	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
80. Detective Comics 599 (4/89, DC Comics)	Qualified	1	8.00	January 01, 2019									1
81. Detective Comics 599 (4/89, DC Comics)	Qualified	1	8.00	July 02, 2019									1
82. Detective Comics 599 (4/89, DC Comics)	Qualified	1	8.00	December 31, 2019									1
83. Detective Comics 599 (4/89, DC Comics)	Qualified	1	8.00	June 30, 2020									1
84. Detective Comics 599 (4/89, DC Comics)	Qualified	1	8.00	December 29, 2020									1
85. Detective Comics 599 (4/89, DC Comics)	Qualified	1	8.00	June 29, 2021									1
86. Detective Comics 599 (4/89, DC Comics)	Qualified	1	8.00	December 28, 2021									1
87. Detective Comics 599 (4/89, DC Comics)	Qualified	1	8.00	June 28, 2022									1
88. Detective Comics 599 (4/89, DC Comics)	Qualified	1	8.00	December 27, 2022									1
89. Detective Comics 599 (4/89, DC Comics)	Qualified	1	8.00	June 27, 2023									1
90. Detective Comics 599 (4/89, DC Comics)	Qualified	1	8.00	December 31, 2023									1
91. Detective Comics 599 (4/89, DC Comics)	Qualified	1	8.00	June 24, 2025									1
92. Detective Comics 599 (4/89, DC Comics)	Qualified	1	8.00	July 01, 2025									1
93. Detective Comics 599 (4/89, DC Comics)	Qualified	1	8.00	July 15, 2025									1
94. Detective Comics 599 (4/89, DC Comics)	Qualified	1	8.00	July 22, 2025									1
95. Detective Comics 599 (4/89, DC Comics)	Qualified	1	8.00	July 29, 2025									1
96. Detective Comics 599 (4/89, DC Comics)	Qualified	1	8.00	August 05, 2025									1
97. Detective Comics 599 (4/89, DC Comics)	Qualified	1	8.00	August 12, 2025									1
98. Detective Comics 599 (4/89, DC Comics)	Qualified	1	8.00	August 19, 2025									1

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