Sky Hook was a science fiction fanzine published by Redd Boggs from 1948-1957. It was nominated for the 1954 Retro Hugo for Best Fanzine.
Contributors included Poul Anderson, James Blish, Philip Jose Farmer, Dean Grennell, David Keller, Virginia Kidd (as "Virginia Blish"), Sam Moskowitz, William Rotsler, and Jack Speer.
References
Sky Hook Wikipedia(Text) CC BY-SA