Weird Tales, November 1938.

Weird Tales was begun in 1922 by J.C. Henneberger and J. M. Lansinger under Baird Publishers, but it floundered. In 1924, Henneberger moved the concept to Wright Publishers and it prospered there for the next 15 years. It became a popular and well-known place for many famous science fiction writers, including H.P. Lovecraft whose Cthulhu stories first appeared in the magazine. The magazine continued until 1954 when it folded, but it has been relaunched a few times (first in 1973), most successfully in 1988 where the magazine continued under several different publishers for the next 20 years or so. The title was changed in the mid 90’s to Worlds of Fantasy & Horror because of licensing issues, but it retook its original name in 1998.

via: The Internet Archive