This article reports the first time the Detroit News received an ad placement by radiotelephone. However, fourteen years earlier a similar event had taken place, by radiotelegraph.
 
Detroit News, September 4, 1920, pages 1-2:

MANY  TO  GET  RADIO  OUTFITS
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Interest  in  Wireless  Telephony  Stirred  by  The  News  Nightly  Bulletins.
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    There is going to be a marked increase in the number of wireless sets in Detroit, judging from inquiries reaching The News radiophone department asking how instruments may be obtained with which to hear the nightly news service and musical concerts which are sent out by The News wireless telephone.
    The interest in The News radiophone increases daily, and replies from operators who have heard the concerts and bulletins of the latest developments in local and world news continue to reach The News.
    The bulletins are sent out every night in the week, except Sunday, from 8 p. m. to 9 p. m.
    A marked improvement is noted by receivers of the wireless telephone messages in the degree of clarity and distinctness with which they may be heard. As operators of receiving sets get more accustomed to receiving the messages and have their instruments in perfect tune there need be little difficulty in hearing every word that is spoken by The News Radiophone operator and every note of the musical numbers.

DODGE  MAN  INTERESTED.
    "The writer is very much interested in the wireless radiophone," writes R. J. Whitney, construction engineer at Dodge Brothers, "and would be pleased to receive any information regarding where he could obtain necessary material, instruments, etc., for setting up the wireless apparatus."
    A similar request is made by Leo M. Maurer, 165 Fairview avenue.
    Here are some of the comments on The News radiophone service made by receivers of the messages:
    "Detroit News: I am just now sitting in my front room at home enjoying to the fullest extent one of your waltzes as it is being sent out by your radiophone (time, 9:10 p. m.) It is coming in fine and I found it very interesting to follow your election bulletins. When I tell you that I greatly appreciate this service I am sure that there are many hundreds more just like me. I congratulate you and wish you great success with the radiophone.
                    "C. O. WILLIAMS.
    "Royal Oak."

GOING  TO  CHARLOTTE.
    "The Detroit News: I wish to thank you for the short concert that you gave me Saturday about 5:30 p. m., and in answer to your requests at that time am writing this letter. Both of the pieces played, and the voice were exceptionally clear and free from generator hums and other disagreeable noises. Also the music and the voice were understandable at about 20 feet, and audible at about 30 feet.
    "At the time, I was using a two-stop amplifier and Baldwin phones. I am going with my set up to Charlotte, Mich., about 12 miles northwest of here and will listen for you and let you know at once if I get you.
               "So, 73 Cul-om,
                    "ROY E. CHAPIN."
    "358 Helen Ave., Radio 8ACN."
    Musical selections were heard distinctly by Albert Charlet, 578 Seventeenth street, on a Galena Detector and home-made honeycomb.
    Interference by amateurs was noted by Frank Reid, 388 West Grand boulevard, who had difficulty in hearing the musical selections, but got the bulletins loud and clear.
    In another reply Mr. Reid states that he heard the musical selections distinctly, but had trouble with the bulletins. His two replies relate to two nights.

INTERFERENCE  RELATED.
    Harry Baron, 1218 Chene street, who has a new receiving set heard the musical selections distinctly.
    E. Sawyer, 151 Dexter boulevard, whose station call is "ES," heard every word that was said, but complains of interference by amateurs.
    G. Rouston, 627 Chalmers avenue, states that the results were good and that he heard the orchestral music better than the bulletins.
    "Heard like a phonograph in the room," writes Edwin C. Danstaedt, 883 McDougall avenue. He used a one-step amplifier. "With a phonograph horn on the receiver the original could be heard plainly 40 feet away, he said.
    What was doubtless the first want ad ever sent to a newspaper by radiophone was received for insertion by The Detroit News, through its radiophone department, Friday night. It came from Albert Allen, station call 8WA, amateur wireless devotee, and was sent for his father. The message distinctly picked out of the night read: "Detroit News--Please insert the following want ad and send the bill by mail: 'For sale--One pair of prism binoculars, 12 power. James P. Allen, 435 Bragg street.' "