Dalek Supreme Type E

A distinct model of Dalek casing was identified by the Time Lords (PROSE: Dalek Combat Training Manual) as being used by the Supreme Dalek of the New Dalek Empire. (TV: The Stolen Earth/Journey's End)

Characteristics
The Supreme Dalek was a variant of the "Type VIII" Bronze Dalek model, with a red casing, golden sense globes, and extra slat plating connecting the grating section to the weapons platform. As well as extra armour, the Supreme One had a third luminosity discharger, which — as with his other lights — was mounted on a small plate atop his dome. (TV: The Stolen Earth/Journey's End)

The Dalek Time Strategist who, being second-in-command to the Dalek Emperor, outranked the Supreme Daleks, (AUDIO: Restoration of the Daleks, Temmosus) possessed a similar casing albeit coloured purple. Similar to the Dalek Time Controller, the Time Vortex was visible inside the Dalek Time Strategist's extended grating section, which also featured diagonal rings similar to on the Time Controller. (AUDIO: Eye of Harmony, The Enigma Dimension)

Pre-Time War
During the Second Dalek War, a Dalek Supreme with this model casing led grey Daleks in an attack on the Cathedral of Contemplation. In advance of the attack, its forces exterminated Captain Zenna's forces, making a Dalek duplicate of the man, sending him ahead to the Cathedral of Contemplation so that the Daleks could invade it via a time corridor whereupon they would form a time corridor directly into Earth High Command.

When the Daleks invaded, they quickly seized the control room, exterminating the Abbess, but were hampered by the computer systems, unable to lock the Cathedral onto Earth. When the Fourth Doctor was captured, he mocked the Daleks that their killing of the Abbess was the cause for their lack of progress. When the Tenth Doctor was later discovered and brought before the Daleks, the Supreme ordered the two plugged in as substitutes for the Abbess and to focus on Earth. Though a time corridor was established to Earth's spatial coordinates, the Tenth Doctor had sent the Dalek force to the year 5.5/Apple/26. The chaos of this proved enough of a distraction for the Supreme to lower its guard and allow Jora to shoot it. As a result of its extra shielding systems, the Supreme survived the attack and began attacking directly only for the Doctors to trap it within the Cathedral as the structure collapsed in on itself. (AUDIO: Out of Time)

Its successor continued to explore time travel as an avenue through which to win the war. By this point, Dalek drones were bronze with a refined shape resembling the prior red Supreme. (PROSE: Prisoner of the Daleks)

Time War
This casing was the last of five Supreme Dalek models, preceding the New Dalek Paradigm of the post-Time War universe, which were identified by the Time Lords in their scrutiny of the Daleks' timeline and recorded in the Dalek Combat Training Manual, published during the Last Great Time War. At the time of publication, the Time Lords were only aware of this model through the Matrix's projections of the Planetary Relocation Incident in the post-Time War universe. (PROSE: Dalek Combat Training Manual)

A red Dalek Supreme commanded a Dalek fleet which attempted to ambush the War Doctor after leaking its coordinates to the Time Lords. After the Doctor escaped the trap, the Dalek Supreme ordered its underlings to "activate the tracker beacon" and gloated that "the Predator" would soon be located and "bent to the will of the Daleks". (COMIC: Ambush)

Post-Time War
A red Supreme Dalek led the New Dalek Empire which was created in the post-Time War universe after Dalek Caan retrieved Davros from the Time War timeline. The Supreme Dalek oversaw the Planetary Relocation Incident, only to be destroyed by Captain Jack Harkness when it attacked the Vault. (TV: The Stolen Earth/Journey's End)

The dome of an identical Supreme Dalek ended up in UNIT's Black Archive. (TV: The Day of the Doctor)

A red Supreme Dalek commanded the Daleks from Dalek control on a rebuilt Skaro at the Dalek City. (TV: The Magician's Apprentice) In the Hybrid Incident, these Daleks faced a revolt from discarded sewers Daleks that had been rejuvenated with the Twelfth Doctor's regeneration energy. (TV: The Witch's Familiar)

Prop
The Supreme Dalek was depicted using a specially created prop. The dome from this Supreme Dalek prop appeared in the Black Archive in The Day of the Doctor. The full prop was later reused to depict the Supreme Dalek in The Magician's Apprentice/The Witch's Familiar.

Other matters

 * In a section on the design of the Supreme Dalek, Doctor Who: The Ultimate Monster Guide suggested that the enlarged gold struts allowed it to plug into flagship systems.
 * The original cancelled design for the Supreme Dalek was similar to the Glass Dalek. It was to be translucent and transparent, showing internal functions and machines as well as the Dalek mutant within.
 * The trailer for AUDIO: Master! depicts the Dalek Supreme in Vengeance, showing it in the modern Supreme casing first seen in The Stolen Earth, but with a black and silver coloration instead of red and gold.