This is what stock trading used to look like
The inventor Edward A Calahan revealed the world’s very first stock cost ticker
system in 1867, yet it made use of morse code as well as was basically a pietistic
telegraph receiver. Two years later on, Thomas Edison launched the Univeral
Stock Ticker maker (envisioned). It made use of alphanumeric numbers as well as printed
one personality each minute. (Photo from the Museum
of American Finance).
Photo: Gallery of American Finance, NYC.