director:
Basil Wrangell
playwright:
George Wallace Sayre
/
Samuel H. Chain
/
Doane R. Hoag
actor:
John Nesbitt
/
Marjorie Kane
/
Nestor Paiva
/
Jo Ann Sayers
genre:
Documentary
/
Drama
region:
United States
length: 11m
release date: 1939-08-26
IMDb: tt0143968
Overview
The "unseen guardians" of the title are the Postal Inspection Service, which investigates mail order racketeering; the Underwriters' Laboratories, which are shown testing electrical equipment, fire extinguishers, and large floor safes; and those who run orphanages, who assure that the children in their care are placed in proper adoptive homes.