Used as a way to confirm communication between amateur radio enthusiasts, QSL cards were popular during the Ham radio craze of the 1930s-50s. Some were simply typed, some hand-drawn or...
Used as a way to confirm communication between amateur radio enthusiasts, QSL cards were popular during the Ham radio craze of the 1930s-50s. Some were simply typed, some hand-drawn or illustrated and some, like these, were produced photographically (and printed on postcard paper). QSL cards were a tangible, personalized way of relaying to someone on the other side of the country or the world that they had indeed made a connection through the frequency.