Ad blocker interference detected!
Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers
Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.
The dictagraph was a 20th century device used for covertly recording the activities in a room. The device was connected by telephone wires to a dictagraph plate which picked up noises in the room. Using receivers, individuals could hear what was happening. Stenographers would write down what was heard through the receivers.