1941 Fanzine

This item recently seen on the ebayeum, an interesting and somewhat typical fanzine of the period. The "names" would usually reach down and assist in some way to help a 'zine. Cool illustration.
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SUN SPOTS #20 (October 1941) 5 1/2 x 8 1/2, 12 pages. Excellent like new condition. Good printing on good paper (not mimeo or ditto).
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Article by Eando Binder (actually Earl and/or Otto Binder) about writing for comic books. He mentions Jerry Siegel, The Human Torch, Captain Marvel and other comics. One of the earliest mentions of comic books in a science fiction fanzine. Article by Ralph Milne Farley "What Is Time" written especially for this fanzine. Letter from Forry Ackerman signed "4E Ackerman." Letter from Hugo Gernsback agreeing to write an article for them at the rate of 2 cents a word (a high rate in those days) and the editor reluctantly turning him down. A fanzine review column and more.