“The Other Lovecraft” by science-fiction author James Blish, written 1964 and seemingly still unpublished.

It appears to be mis-described in the sale listing. The later note appended by the editor says “would have appeared”, not “was” published, in “Epilogue magazine”, and the bundle appears to include an earlier announcement page for the article.

But Epilogue was actually George Zebrowski’s fanzine rather than a regular magazine and it appears to have lasted only three issues… and ended with #3 in summer 1964. I can find no trace of this Blish article on Lovecraft, which had been set to appear in the Halloween issue, and thus have to assume this item has never been published. There’s nothing of it in the Bibliography and no other trace of it.

Judging by what can be glimpsed of the first page, it appears not to be a personal memoir, but who know what lurks on the reverse of the sheet?