After Dark, My Sweet

The census claim is correct: the US Popular Library paperback original of 1955 is the true first, and no UK or foreign-language edition precedes or is simultaneous with it. There is no rival edition to name — everything else is downstream. Later UK and US reissues (including the Orion Crime Masterworks and Mulholland Classic editions) are reprints, "first thus" at best; the claim in the census that no hardcover appeared "until much later" is directionally right but the sources consulted do not fix a date for a first hardcover appearance, so no such date should be published.