Busman's Honeymoon

The UK Gollancz 1937 edition is the true first of the novel. Note the stage play (co-written with Muriel St. Clare Byrne) preceded the novel, premiering in 1936, so the novel is not the earliest appearance of the story in any form. One isolated dealer listing claims the American Harcourt edition precedes the English; this runs against the bibliographic consensus that Gollancz is the true first.