Whispers Volume 2 Number 2/3, June 1975. Contains a letter from Howard to Wilfred Blanch Talman written circa September 1931. The letter starts like this: “Dear Mr. Talman:
Thank you very much for the letter you wrote to Street & Smith.” It’s numbered #175 and can be found in The Collected Letters of Robert E. Howard Volume 2 as well.

Also there is some color artwork on pp. 66 & 67, courtesy of Donald Grant, published here before appearing in “The Tower of the Elephant” by Robert E. Howard that Grant published later in 1975.