One hundred years ago this month, the March 1920 issue of Boys’ Life carried this ad from the Deforest Radio Telephone and Telegraph Company, 1397 Sedgwick Avenue, Bronx, New York.

Interestingly, I’ve noticed that some ads from this era, like this one, don’t make a distinction between a licensed amateur radio operator, who could transmit, and someone who was just operating a radio receiver as an amateur.  The ad invites boys to write in for a catalog of radio equipment to get the news from everywhere by wireless.  It told them that they could “be an Amateur Radio Operator with your own Receiving Station.”  The ad made clear that the company didn’t sell toys, but instead “practical, scientific Radio Apparatus like that used by Government and Commercial Stations.”  One could start out inexpensively and then build up the station.