| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | mid-Dec | |
| Winter | Spring | Summer | Fall | Winter | |||||||||
| 1949 | v1 #1 #1 Jul |
v1 #2 #2 Sep |
v1 #3 #3 Dec |
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| 1950 | v1 #4 #4 Mar |
v1 #5 #5 Jun |
v1 #6 #6 Sep |
v1 #7 #7 Dec |
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| 1951 | v1 #8 #8 Mar |
v1 #9 #9 Summer |
v1 #10 #10 Autumn |
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| 1952 | v1 #11 #11 Winter |
v1 #12 #12 Spr/Sum |
v2 #1/2 #13/14 Winter |
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| 1953 | v2 #3 #15 Summer |
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| 1954 | v2 #4 #16 Summer |
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| 1955 | v2 #5 #17 Mar |
v2 #6 #18 May |
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| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | mid-Dec | |
| Winter | Spring | Summer | Fall | Winter | |||||||||
| 1952 | v1 #2 Oct/Nov |
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A character pulp. The lead novels are all SF but the back-up stories almost never are. The novels from June 1936 to March 1938 are sequential and tell the story of the Purple Invasion. Another sequence, featuring an invasion by the Yellow Vulture, was begun in May 1939 and had not been resolved when the magazine folded.
Publishers: Popular Publications; Chicago.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | mid-Dec | |
| Winter | Spring | Summer | Fall | Winter | |||||||||
| 1934 | v1 #1 Apr |
v1 #2 May |
v1 #3 Jun |
v1 #4 Jul |
v2 #1 Aug |
v2 #2 Sep |
v2 #3 Oct |
v2 #4 Nov |
v3 #1 Dec |
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| 1935 | v3 #2 Jan |
v3 #3 Feb |
v3 #4 Mar |
v4 #1 Apr |
v4 #2 May |
v4 #3 Jun |
v4 #4 Jul |
v5 #1 Aug |
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| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | mid-Dec | |
| Winter | Spring | Summer | Fall | Winter | |||||||||
| 1935 | v5 #2 Sep |
v5 #3 Oct |
v5 #4 Nov |
v6 #1 Dec |
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| 1936 | v6 #2 Jan |
v6 #3 Feb |
v6 #4 Mar |
v7 #1 Apr |
v7 #2 Jun/Jul |
v7 #3 Aug/Sep |
v7 #4 Oct/Nov |
v8 #1 Dec |
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| 1937 | v8 #2 Jan |
v8 #3 Feb |
v8 #4 Mar/Apr |
v9 #1 May/Jun |
v9 #2 Jul/Aug |
v9 #3 Sep/Oct |
v9 #4 Nov/Dec |
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| 1938 | v10 #1 Jan/Feb |
v10 #2 Mar/Apr |
v10 #3 May/Jun |
v10 #4 Jul/Aug |
v11 #1 Sep/Oct |
v11 #2 Nov/Dec |
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| 1939 | v11 #3 Jan/Feb |
v11 #4 Mar/Apr |
v12 #1 May/Jun |
v12 #2 Jul/Aug |
v12 #3 Sep/Oct |
v12 #4 Nov/Dec |
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| 1940 | v13 #1 Jan/Feb (unpublished) |
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Canadian reprint edition of Operator #5. No issues have yet been located.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | mid-Dec | |
| Winter | Spring | Summer | Fall | Winter | |||||||||
| 1929 | v12 #4 Jun |
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| 1930 | v14 #2 Apr |
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| 1939 | Mar | ||||||||||||
Opportunity: A Journal of Negro Life (about)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | mid-Dec | |
| Winter | Spring | Summer | Fall | Winter | |||||||||
| 1924 | Dec | ||||||||||||
| 1925 | v3 #25 Jan |
v3 #26 Feb |
v3 #28 Apr |
v3 #29 May |
v3 #30 Jun |
v3 #31 Jul |
v3 #32 Aug |
v3 #33 Sep |
v3 #34 Oct |
v3 #36 Dec |
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| 1926 | v4 #37 Jan |
v4 #38 Feb |
v4 #40 Apr |
v4 #42 Jun |
v4 #43 Jul |
v4 #44 Aug |
v4 #45 Sep |
v4 #46 Oct |
v4 #48 Dec |
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| 1927 | v5 #2 Feb |
v5 #3 Mar |
v5 #4 Apr |
v5 #5 May |
v5 #6 Jun |
v5 #7 Jul |
v5 #8 Aug |
v5 #9 Sep |
v5 #10 Oct |
v5 #11 Nov |
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| 1928 | v6 #1 Jan |
v6 #2 Feb |
v6 #4 Apr |
v6 #8 Aug |
v6 #10 Oct |
v6 #11 Nov |
v6 #12 Dec |
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| 1929 | v7 #1 Jan |
v7 #2 Feb |
v7 #4 Apr |
v7 #5 May |
v7 #6 Jun |
v7 #7 Jul |
Aug | Sep | Oct | Nov | Dec | ||
| 1930 | Jan | Feb | Mar | Apr | v8 May |
v8 Oct |
v8 Dec |
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| 1931 | v9 Feb |
v9 Apr |
v9 Jul |
v9 Sep |
v9 Oct |
v9 Dec |
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| 1932 | Jan 11 | Feb 1 | Mar 14 | v10 Apr |
Apr 4 | Apr 11 | Apr 25 | May 16 | v10 Sep |
v10 Oct |
v10 Dec |
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