|Title:||Street & Smith's Unknown|
|Also known as:||Unknown; Unknown Worlds; Unknown Fantasy Fiction|
|Tables of contents:||ISFDB, Galactic Central|
|First issue:||March 1939 (v. 1 no. 1)|
|First renewed issue:||March 1939 (v. 1 no. 1); see 1966|
|First renewed contribution in:||April 1939 (v. 1 no. 2); see 1966 July-December|
|Last issue:||October 1943 (v. 7 no. 3)|
|Page responsibility:||John Mark Ockerbloom (ockerblo (at) pobox (dot) upenn (dot) edu)|
|Last updated:||December 18, 2017|
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