The Nov. 22, 1941, issue of the New Yorker magazine (16 days before the attack on Pearl Harbor) carried two extremely strange advertisements that in retrospect, are full of double meanings.
So much so that at the time, the adverts had been considered by the intelligence community as a warning to someone about the timing of the upcoming Japanese offensive.
The first “teaser advertisement” which appeared in the New Yorker can be seen below.
The text read “Achtung! Warning! Alerte!” Underneath, readers were encouraged to “See Advertisement Page 86.”
The ad also contained two dice, which showed the date of the attack. It was apparently placed by a company named Monarch Publishing Co.
A second advertisement ran on page 86. It contained a strange picture of people playing dice in an air-raid shelter, repeated the “Achtung! Warning! Alerte!” text, and referred to a game called “The Deadly Double.”
After Pearl Harbor, American civilians became extra-vigilant about foreign spies and saboteurs. Thousands of rumors and tips flooded into FBI Headquarters. One of the most prominent tips was in regard to “The Deadly Double” advertisement. Hundreds of readers suspected it was a coded message, designed to alert Japanese and Nazi spies about the upcoming attack.
“FBI agents discovered that the advertisement had been placed by the Monarch Trading Company (a dummy corporation). A white male, who had not given his name, had brought the plates for the ad to the New Yorker offices and had paid in cash. He had not given his address. Curiously, the man the FBI would identify as the suspect apparently met a sudden, violent death a few weeks later.”
Who was warning who?
Ever since the Pearl Harbor attack, stories and rumours have spread claiming Washington had prior knowledge of the attack.
The information, contained in a declassified memorandum from the Office of Naval Intelligence, adds to proof that Washington dismissed red flags signalling that mass bloodshed was looming and war was imminent.
No evidence has yet surfaced as to who really placed the adverts and if it really was a hidden coded warning.