airtel

plural airtels

1. historicalA form of communication formerly used within the FBI, indicating a letter that had to be typed and mailed on the same day.

   An airtel from the Dallas office to this Bureau dated October 30, 1963, wherein SA James P. Mosty, Jr., reported a pretext interview in the vicinity of 2515 West Fifth Street, Irving, Texas.

   1976, United States Congress, FBI Oversight: Hearings Before the Subcommittee on Civil and Constitutional Rights of the Committee on the Judiciary

   1 more example

   Surveillance implies that the government voluntarily disclosed the airtels so that Taglianetti might have an opportunity to establish that the tax case against him was the fruit of unlawful electronic surveillance.

   1969, Donald Ray Cressey, Theft of the Nation, page 121