Behold the Trommelwähler!

Trommelwähler Watch this video on YouTube. From the Herbert H. Warrick, Jr. Museum of Communications, who note: "I've seen this style of dial illustrated in early human-factors study reports. I…

Trommelwähler

From the Herbert H. Warrick, Jr. Museum of Communications, who note: "I've seen this style of dial illustrated in early human-factors study reports. I didn't know they actually made them!