Obviously a play on words between "Amazing" and "magazine". STF stands for scientifiction, the name science-based adventure fantasy had before $SJ (Forest J. Ackerson) coined SciFi, and before science fiction became stodgy and proper "SF".
Seller states: Vol 1 no 1 (no year given) 14pgs + covers, side stapled. WISCONSIN DIARY by August Derleth. Published by Phil Harrell. Cover little soiled, VG.
The bug spray on the Naziesque character probably dates it to the early 1940's (maybe 1943?). I could find no online source to collaborate.