In the former German Democratic Republic (GDR) a system very similar to Big Brother was in place, though not relying on technology, but using human informants only.
It was set up by the Stasi:
Full-time officers were posted to all major industrial plants (the extensiveness of any surveillance largely depended on how valuable a product was to the economy) and one tenant in every apartment building was designated as a watchdog reporting to an area representative of the Volkspolizei (Vopo). Spies reported every relative or friend who stayed the night at another's apartment. Tiny holes were drilled in apartment and hotel room walls through which Stasi agents filmed citizens with special video cameras. Schools, universities, and hospitals were extensively infiltrated.
The Stasi had formal categorizations of each type of informant, and had official guidelines on how to extract information from, and control, those with whom they came into contact. The Stasi infiltrated almost every aspect of GDR life. In the mid-1980s, a network of IMs began growing in both German states; by the time that East Germany collapsed in 1989, the Stasi employed 91,015 employees and 173,081 informants. About one out of every 63 East Germans collaborated with the Stasi. By at least one estimate, the Stasi maintained greater surveillance over its own people than any secret police force in history.
They also had something closely similar to the psycho-police:
The Stasi perfected the technique of psychological harassment of perceived enemies known as Zersetzung (pronounced [ʦɛɐ̯ˈzɛtsʊŋ]) – a term borrowed from chemistry which literally means "decomposition". Tactics employed under Zersetzung generally involved the disruption of the victim's private or family life. This often included psychological attacks, such as breaking into homes and subtly manipulating the contents, in a form of gaslighting – moving furniture, altering the timing of an alarm, removing pictures from walls or replacing one variety of tea with another. Other practices included property damage, sabotage of cars, purposely incorrect medical treatment, smear campaigns including sending falsified compromising photos or documents to the victim's family, denunciation, provocation, psychological warfare, psychological subversion, wiretapping, bugging, mysterious phone calls or unnecessary deliveries, even including sending a vibrator to a target's wife. Usually, victims had no idea that the Stasi were responsible. Many thought that they were losing their minds, and mental breakdowns and suicide could result.
Considering that the Stasi could rely on the experience developed in the USSR, I would say that anticipating its creation at the beginning of the XX century would be entirely plausible.
