Shown here in Popular Mechanics a hundred years ago this month, January 1923, is an automobile caravan promoting the 1925 Atlantic-Pacific Highways and Electrical Exposition, to be held in Portland, Oregon. The caravan toured Eastern Oregon to promote interest in the exposition. It included Army radio operators who demonstrated the apparatus, and for many rural citizens, it was the first time that they had seen or heard a radio.

Perhaps some of them went on to acquire the set shown below, which was also featured in the same issue of the magazine. The portable set, intended for use by non-technical radio fans, The entire set, including batteries, measured only 7 by 9 by 11 inches. According to the magazine, the set was tested near Galveston, Texas, where it solidly pulled in concerts from Georgia, Tennessee, Kansas, and Missouri, despite what were described as troublesome radio conditions endemic to Texas. Even more distant stations were also received at times.