CGCdata.com - Selected Census Data

Results for: title/:Science:Wonder:Stories:/pub/:Gernsback:Publications:/label/all/orderby/year -edit search-
(click on a book to isolate the current CGC Census information)

Books	CGC Label	CGC Total	Avg. Grade	9.6	9.4	9.0	8.5	7.5	7.0	6.5	6.0	5.5	5.0	3.0
1. Science Wonder Stories 1 (June 1929, Gernsback Publications) Frank R. Paul cover & art Hugo Gernsback, H.G. Wells stories	Universal	2	4.75							1				1
2. Science Wonder Stories 2 (July 1929, Gernsback Publications) Frank R. Paul cover & art Hugo Gernsback, Jack Williamson stories	Universal	1	8.50				1
3. Science Wonder Stories 4 (September 1929, Gernsback Publications) Frank R. Paul cover & art Hugo Gernsback story	Universal	1	9.40		1
4. Science Wonder Stories 6 (November 1929, Gernsback Publications) Frank R. Paul cover & art Hugo Gernsback story	Universal	2	7.80	1							1
5. Science Wonder Stories 7 (December 1929, Gernsback Publications) Frank R. Paul cover & art Hugo Gernsback story	Universal	1	5.00										1
6. Science Wonder Stories 8 (January 1930, Gernsback Publications) Frank R. Paul cover & art Hugo Gernsback story	Universal	1	9.00			1
7. Science Wonder Stories 9 (February 1930, Gernsback Publications) Frank R. Paul cover & art Hugo Gernsback story	Universal	1	7.00						1
8. Science Wonder Stories 10 (March 1930, Gernsback Publications) Frank R. Paul cover & art Hugo Gernsback story	Universal	1	5.50									1
9. Science Wonder Stories 11 (April 1930, Gernsback Publications) Frank R. Paul cover & art Hugo Gernsback story	Universal	1	7.50					1
10. Science Wonder Stories 12 (May 1930, Gernsback Publications) Last issue. Merges with Air Wonder Stories to become Wonder Stories. Frank R. Paul cover & art	Universal	1	7.50					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
10 BOOKS	Universal	12	7.04	0 0.00%	0 0.00%	0 0.0%	1 8.3%	1 16.7%	0 16.7%	1 25.0%	1 33.3%	0 33.3%	2 50%	1 58%	1 67%	1 75%	1 83%	1 92%	0 92%	0 92%	0 92%	1 100%	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 17, 2026.
A visual of CGC label changes through the years is available here.
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