The 750 copy boxed, signed edition from Phantasia Press is simultaneous with the Doubleday hardcover "trade edition" of October 1983. I did some checking in old issues of LOCUS to see if it really did come out at the same time, and in the November 1983 issue, both editions are listed in the September "books received" listing. So both count as "first edition?"

The Robots of Dawn - It has been 2 years since Elijah Baley returned to his quiet life as an ordinary Earth cop after teaming with his robot partner R. Daneel Olivaw to solve 2 of the galaxy's most troubling murders. Now, a potentially explosive crime intrudes on Bailey's life. On the Spacer planet of Aurora, Jander Panell, second of the two most advanced and humanlike robots in the galaxy, is defunct, his brain shut down in "roblock." A logical impossibility, the event has no scientific name. But Baley has an apt, more familiar term for it: murder. On Aurora, Baley rejoins Daneel to face a bewildering tangle of enigmas in a case that will have immense repercussions. For Jander was at the very center of a struggle between 2 factions on Aurora. One, led by Baley's old friend - and Jander's creator - Dr. Han Fastolfe, is convinced that only humans, especially Earthmen, can lead the march of exploration into deep space. The other, fiercely anti-Earth, is determined to put that exploration, and thus Man's fate, into the hands of robots... and condemn Earth to galactic oblivion. With such enormous stakes, Baley knows either side could have resorted to murder... and might again, if a nosy cop gets too close to the truth.