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House of Mystery #187
DC Comics, 7-8/70
Robert Kanigher storyAtomic explosion panels.
Alex Toth and Wayne Howard art
Neal Adams cover
 BooksCGC LabelCGC TotalAvg. GradeCensus Date109.99.89.69.49.29.08.58.07.57.06.56.05.55.04.54.03.53.02.52.01.81.51.00.5
 1. House of Mystery 187 (7-8/70, DC Comics)Universal39.33 July 17, 2003 21
 2. House of Mystery 187 (7-8/70, DC Comics)Universal39.33 January 08, 2004 21
 3. House of Mystery 187 (7-8/70, DC Comics)Universal39.33 July 12, 2004 21
 4. House of Mystery 187 (7-8/70, DC Comics)Universal59.28 December 16, 2004 23
 5. House of Mystery 187 (7-8/70, DC Comics)Universal59.28 July 07, 2005 23
 6. House of Mystery 187 (7-8/70, DC Comics)Universal69.15 January 27, 2006 231
 7. House of Mystery 187 (7-8/70, DC Comics)Universal79.21 June 20, 2006 1231
 8. House of Mystery 187 (7-8/70, DC Comics)Universal99.19 January 10, 2007 12411
 9. House of Mystery 187 (7-8/70, DC Comics)Universal99.19 July 05, 2007 12411
 10. House of Mystery 187 (7-8/70, DC Comics)Universal129.19 January 09, 2008 13521
 11. House of Mystery 187 (7-8/70, DC Comics)Universal139.19 July 01, 2008 13621
 12. House of Mystery 187 (7-8/70, DC Comics)Universal139.19 January 13, 2009 13621
 13. House of Mystery 187 (7-8/70, DC Comics)Universal159.22 June 24, 2009 23721
 14. House of Mystery 187 (7-8/70, DC Comics)Universal199.18 December 15, 2009 24832
 15. House of Mystery 187 (7-8/70, DC Comics)Universal209.20 June 14, 2010 34832
 16. House of Mystery 187 (7-8/70, DC Comics)Universal239.17 December 27, 2010 368321
 17. House of Mystery 187 (7-8/70, DC Comics)Universal249.17 June 27, 2011 369321
 18. House of Mystery 187 (7-8/70, DC Comics)Universal249.17 January 02, 2012 369321
 19. House of Mystery 187 (7-8/70, DC Comics)Universal259.14 July 02, 2012 369331
 BooksCGC LabelCGC TotalAvg. GradeCensus Date109.99.89.69.49.29.08.58.07.57.06.56.05.55.04.54.03.53.02.52.01.81.51.00.5
 20. House of Mystery 187 (7-8/70, DC Comics)Universal289.06 December 31, 2012 37103311
 21. House of Mystery 187 (7-8/70, DC Comics)Universal309.07 June 22, 2013 38113311
 22. House of Mystery 187 (7-8/70, DC Comics)Universal329.09 December 31, 2013 310113311
 23. House of Mystery 187 (7-8/70, DC Comics)Universal339.09 July 01, 2014 310114311
 24. House of Mystery 187 (7-8/70, DC Comics)Universal339.09 December 30, 2014 310114311
 25. House of Mystery 187 (7-8/70, DC Comics)Universal359.09 June 30, 2015 310116311
 26. House of Mystery 187 (7-8/70, DC Comics)Universal389.09 December 29, 2015 311118311
 27. House of Mystery 187 (7-8/70, DC Comics)Universal419.11 June 28, 2016 411138311
 28. House of Mystery 187 (7-8/70, DC Comics)Universal419.11 December 27, 2016 411138311
 29. House of Mystery 187 (7-8/70, DC Comics)Universal419.11 June 27, 2017 411138311
 30. House of Mystery 187 (7-8/70, DC Comics)Universal419.11 January 02, 2018 411138311
 31. House of Mystery 187 (7-8/70, DC Comics)Universal429.11 July 03, 2018 411148311
 32. House of Mystery 187 (7-8/70, DC Comics)Universal459.13 January 01, 2019 512158311
 33. House of Mystery 187 (7-8/70, DC Comics)Universal479.11 July 02, 2019 15121583111
 34. House of Mystery 187 (7-8/70, DC Comics)Universal499.07 December 31, 2019 151315831111
 35. House of Mystery 187 (7-8/70, DC Comics)Universal499.07 June 30, 2020 151315831111
 36. House of Mystery 187 (7-8/70, DC Comics)Universal529.08 December 29, 2020 151515931111
 37. House of Mystery 187 (7-8/70, DC Comics)Universal529.08 June 29, 2021 151515931111
 38. House of Mystery 187 (7-8/70, DC Comics)Universal539.07 December 28, 2021 151515941111
 39. House of Mystery 187 (7-8/70, DC Comics)Universal558.99 June 28, 2022 1516159411111
 BooksCGC LabelCGC TotalAvg. GradeCensus Date109.99.89.69.49.29.08.58.07.57.06.56.05.55.04.54.03.53.02.52.01.81.51.00.5
 40. House of Mystery 187 (7-8/70, DC Comics)Universal568.96 December 27, 2022 1516159412111
 41. House of Mystery 187 (7-8/70, DC Comics)Universal628.87 June 27, 2023 151715106131111
 42. House of Mystery 187 (7-8/70, DC Comics)Universal658.84 December 31, 2023 151815106232111
 43. House of Mystery 187 (7-8/70, DC Comics)Universal878.78 June 24, 2025 162320109743211
 44. House of Mystery 187 (7-8/70, DC Comics)Universal878.78 July 01, 2025 162320109743211
 45. House of Mystery 187 (7-8/70, DC Comics)Universal878.78 July 15, 2025 162320109743211
 46. House of Mystery 187 (7-8/70, DC Comics)Universal878.78 July 22, 2025 162320109743211
 47. House of Mystery 187 (7-8/70, DC Comics)Universal878.78 July 29, 2025 162320109743211
 48. House of Mystery 187 (7-8/70, DC Comics)Universal878.78 August 05, 2025 162320109743211
 49. House of Mystery 187 (7-8/70, DC Comics)Universal878.78 August 12, 2025 162320109743211
 50. House of Mystery 187 (7-8/70, DC Comics)Universal878.78 August 19, 2025 162320109743211
 51. House of Mystery 187 (7-8/70, DC Comics)Signature17.00 December 31, 2013 1
 52. House of Mystery 187 (7-8/70, DC Comics)Signature17.00 July 01, 2014 1
 53. House of Mystery 187 (7-8/70, DC Comics)Signature17.00 December 30, 2014 1
 54. House of Mystery 187 (7-8/70, DC Comics)Signature17.00 June 30, 2015 1
 55. House of Mystery 187 (7-8/70, DC Comics)Signature17.00 December 29, 2015 1
 56. House of Mystery 187 (7-8/70, DC Comics)Signature17.00 June 28, 2016 1
 57. House of Mystery 187 (7-8/70, DC Comics)Signature17.00 December 27, 2016 1
 58. House of Mystery 187 (7-8/70, DC Comics)Signature27.50 June 27, 2017 11
 59. House of Mystery 187 (7-8/70, DC Comics)Signature27.50 January 02, 2018 11
 BooksCGC LabelCGC TotalAvg. GradeCensus Date109.99.89.69.49.29.08.58.07.57.06.56.05.55.04.54.03.53.02.52.01.81.51.00.5
 60. House of Mystery 187 (7-8/70, DC Comics)Signature27.50 July 03, 2018 11
 61. House of Mystery 187 (7-8/70, DC Comics)Signature27.50 January 01, 2019 11
 62. House of Mystery 187 (7-8/70, DC Comics)Signature27.50 July 02, 2019 11
 63. House of Mystery 187 (7-8/70, DC Comics)Signature27.50 December 31, 2019 11
 64. House of Mystery 187 (7-8/70, DC Comics)Signature27.50 June 30, 2020 11
 65. House of Mystery 187 (7-8/70, DC Comics)Signature27.50 December 29, 2020 11
 66. House of Mystery 187 (7-8/70, DC Comics)Signature27.50 June 29, 2021 11
 67. House of Mystery 187 (7-8/70, DC Comics)Signature27.50 December 28, 2021 11
 68. House of Mystery 187 (7-8/70, DC Comics)Signature27.50 June 28, 2022 11
 69. House of Mystery 187 (7-8/70, DC Comics)Signature27.50 December 27, 2022 11
 70. House of Mystery 187 (7-8/70, DC Comics)Signature27.50 June 27, 2023 11
 71. House of Mystery 187 (7-8/70, DC Comics)Signature27.50 December 31, 2023 11
 72. House of Mystery 187 (7-8/70, DC Comics)Signature27.50 June 24, 2025 11
 73. House of Mystery 187 (7-8/70, DC Comics)Signature27.50 July 01, 2025 11
 74. House of Mystery 187 (7-8/70, DC Comics)Signature27.50 July 15, 2025 11
 75. House of Mystery 187 (7-8/70, DC Comics)Signature27.50 July 22, 2025 11
 76. House of Mystery 187 (7-8/70, DC Comics)Signature27.50 July 29, 2025 11
 77. House of Mystery 187 (7-8/70, DC Comics)Signature27.50 August 05, 2025 11
 78. House of Mystery 187 (7-8/70, DC Comics)Signature27.50 August 12, 2025 11
 79. House of Mystery 187 (7-8/70, DC Comics)Signature27.50 August 19, 2025 11

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