Knapp Electric Questioner társasjáték

Angol leírás

(Info from Ebayer deedavermont) One of the first electric quiz games (circa 1920), the Knapp Electric Questioner had various sets of quiz cards ranging from flags to animals to trivia.
Upon completing the circuit by touching the two probes to the correct question and answer a buzzer would sound.
The game also included a Morse code key with the code printed on the inside lid for your convenience.