Due to that Inspector Koichi Zenigata had different nicknames translated from "Tottchan" (Old Man, Pops), this meant that the title was translated multiple times throughout.
In the newspaper article about Lupin murdering Zenigata; there are clippings from "The Darkwater Hall Mystery" a pastiche starring Sherlock Holmes and the 1978 Playboy interview with Anita Bryant. There are other clippings in the collage, however they are currently unknown.