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Results for: title/:Unknown:Worlds:of:Science:Fiction:/label/all/orderby/submissions/variants/yes -edit search-
(click on a book to isolate the current CGC Census information)

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	4.0	3.0
1. Unknown Worlds of Science Fiction 1 (1/75, Marvel Comics) Ray Bradbury & Kelly Freas interviews. Esteban Maroto frontispiece. Wally Wood story, Frank Kel	Universal	118	9.09	27	23	21	18	7	7	3	4	4		1	2			1
2. Unknown Worlds of Science Fiction Special 1 (1976, Marvel Comics) Theodore Sturgeon interview. Don Newton cover. S.F. fandom article by Don & Maggie Thompson. Br	Universal	49	8.78	3	8	9	7	5	3	8	3	1		1		1
3. Unknown Worlds of Science Fiction 2 (3/75, Marvel Comics) Michael Wm. Kaluta cover Alex Ni?o frontispiece. Roy Thomas story, Bruce Jones, Frank Brunner &	Universal	44	9.51	15	14	10	3	1					1
4. Unknown Worlds of Science Fiction 4 (7/75, Marvel Comics) Gary Groth & Robert Kline frontispiece. A.E.Van Vogt & Robert Silverberg adaptations. Bruce Jon	Universal	34	9.44	16	4	5	4	1	3		1
5. Unknown Worlds of Science Fiction 5 (9/75, Marvel Comics) Howard Chaykin frontispiece. Larry Niven interview & adaptation. Bruce Jones story, Gray Morrow	Universal	25	8.93	4	4	7	4		1	1	2		1			1
6. Unknown Worlds of Science Fiction 3 (5/75, Marvel Comics) Morrow frontispiece. Harlan Ellison adaptation. Frank Herbert interview. Ray Bradbury photo. Br	Universal	22	9.24	4	7	4	1	2	1	2	1
7. Unknown Worlds of Science Fiction 6 (11/75, Marvel Comics) Crucifixion cover. Pat Broderick frontispiece. Michael Moorcock adaptation. Last issue. Roy Tho	Universal	19	8.49	2	3	3	1	1	4	2		1			1		1
8. Unknown Worlds of Science Fiction 1 (1/75, Marvel Comics)	Signature	5	7.96	1				1		1		1		1
9. Unknown Worlds of Science Fiction Special 1 (1976, Marvel Comics)	Signature	3	7.33					2									1
10. Unknown Worlds of Science Fiction 1 Australian Edition (1975, Newton Comics) Contains Unknown Worlds of Science Fiction #1-4 (1975) stories. Aussiecon exclusive. Wally Wood	Universal	2	7.25							1			1
11. Unknown Worlds of Science Fiction 4 (7/75, Marvel Comics)	Signature	2	7.95			1							1
12. Unknown Worlds of Science Fiction 1 (1/75, Marvel Comics)	Restored	1	5.00													1
13. Unknown Worlds of Science Fiction 3 (5/75, Marvel Comics)	Signature	1	9.00					1
14. Unknown Worlds of Science Fiction 6 (11/75, Marvel Comics)	Signature	1	8.00							1
15. Unknown Worlds of Science Fiction nn (#3) Australia (1976, Newton Comics) Contains Unknown Worlds of Science Fiction #3 & #6 stories. Doug Moench, Roy Thomas & Tony Isab	Universal	1	7.50								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	3.0
9 BOOKS	Universal	314	9.08	71 22.6%	63 42.7%	59 61%	38 74%	17 79%	19 85%	17 90%	12 94%	6 96%	3 97%	2 98%	3 99%	2 99%	0 99%	1 100%	1 100%
5 BOOKS	Signature	12	7.89	1 8.3%	0 8.3%	1 16.7%	0 16.7%	4 50%	0 50%	2 67%	0 67%	1 75%	1 83%	1 92%	0 92%	0 92%	0 92%	1 100%	0 100%
1 BOOK	Restored	1	5.00	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%

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"CGC Census Analysis" is provided by Greg Holland (©2003-2025).
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 August 19, 2025.
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