Ottonian Infantry

There are a number of manuscripts known as Codex Aureus (Golden book). Ian Heath seems to have based his Ottonian Infantry on the Codex Aureus of Echternach or Codex aureus Epternacensis. This is dated to 1030-1050. Ian Heath's date of 983-991 fits the date of the re-used cover of the codex. Are there any better candidates to be his source?
https://forums.totalwar.org/vb/attac...3&d=1401422248

The soldiers in Herod the Great Receives the Magi are armoured, but those in The Massacre of the Innocents, a scene that often has armoured soldiers, are not. Armed men in other scenes such as The Parable of the Vigneron Homicides have only spears & shields and wear boots & don't have swords or the decorated collar of the soldiers of the Massacre.

MIRROR SITES
Ottonian Infantry in Armies of the Dark Ages 600-1066 by Ian Heath, based on the Codex Aureus of Echternach or Codex aureus Epternacensis
The Codex Aureus of Echternach or Codex aureus Epternacensis

Druzhina
11th Century Illustrations of Costume & Soldiers