"Radio Conference Recommendations: New Wave Lengths", Radio Age, May 1923, page 11. Beginning with these assignments radio stations ended the practice of broadcasting their market reports and weather forecasts on the separate 485 meter wavelength.
"New Stations", Radio Service Bulletin, March 1, 1922, page 2. Limited Commercial license with the call letters WOR, serial #297, issued for a three month period to L. Bamberger & Company in Newark, New Jersey.