Emperor Type I

By the time he presided over Operation Human Factor, the original Dalek Emperor was housed within a huge casing. (TV: The Evil of the Daleks) Time Lord historians at the time of the Last Great Time War designated it as the "Emperor Type I", (PROSE: Dalek Combat Training Manual) while earlier human historians dubbed it the "Emperor Type 3". (PROSE: Dalek Survival Guide)

Having originally inhabited a mobile golden casing, the mutant Dalek Prime had grown far larger as a result of experiments conducted on himself to expand his mental capacity. As such, the Emperor lost all mobility and so ordered the construction of a specialised life-support system to accomodate him. It was in this form that he oversaw Operation Human Factor, leading to a Dalek Civil War which seemingly destroyed the Emperor. (PROSE: The History of the Daleks) However, the Time Lords acknowledged the possibility that, given the Daleks' extraordinarily long lifespan, the organic part was retrieved and eventually "formed the basis" of the "Emperor Type II" that led the Daleks into the Last Great Time War, (PROSE: Dalek Combat Training Manual) a fact confirmed by some sources (AUDIO: Restoration of the Daleks) and contradicted in others. (PROSE: Dalek: The Astounding Untold History of the Greatest Enemies of the Universe)

Following the Shoreditch Incident, Davros began to modify his own Emperor Dalek casing; in a reflection of his mind's downward spiral into thinking of himself as simply "the Dalek Emperor", he introduced elements reminiscent (AUDIO: Terror Firma) of the static, tower-like casing used by the original Dalek Emperor. (TV: The Evil of the Daleks)