New on Archive.org…
Howard Collector #5, Summer 1964.
Howard Collector #6, Spring 1965. With the poem “Who is Grandpa Theobold?”, from a letter. This would count as another early use of ‘Lovecraft as character’, albeit not in fiction. I wonder what the likely year on this poem is?
Howard Collector #7, Winter 1965.
Howard Collector #8, Summer 1966.
Also new and of interest is a new Dark Worlds Quarterly survey of Robert E. Howard’s Bran Mak Morn in the Comics.
The poem is from a letter to Tevis Clyde Smith, c. October 1931 – in response to a comment that Lovecraft had made on the manuscript of AT THE MOUNTAINS OF MADNESS. The full letter was published in THE COLLECTED LETTERS OF ROBERT E. HOWARD.
The poem is from a letter dated c. November 1931. http://howardworks.com/versew.html#WHO_IS_GRANDPA_THEOBOLD