New York, Gernsback Publications, 1953. Manuscript. Unbound. Very good condition. Gernsback's working copy for his Science Fiction + magazine. Noted as taking up 16pp in the magazine, the typescript runs to 56pp - the difference I presume made up for by print size and format. The manuscript is annotated throughout by Gernsback, though there is a second hand in there too (doesn't look like Moskowitz, but he was the general editor, so it could be). Leinster published the story later as part of a fix-up with Mad Planet and Red Dust, which were written in the early 20s, a nice copy of which is included with the typescript (jacket has taped to the reverse) - Gnome, 1954 in the rare variant beetle jacket. A nice pair. [10187, Hyraxia Books].