Currently on Abe, albeit at large prices.

1. HPL (1937)…

Eight poems by Lovecraft … Twenty-five copies were printed and given free to whoever paid a year’s subscription of 25¢ to Stickney’s AMATEUR CORRESPONDENT

2. Hail, Klarkash-ton! : Being Nine Missives Inscribed Upon Postcards by H.P. Lovecraft to Clark Ashton Smith (1971)

I presume these are now published in the Lovecraft-Smith letters.