Suicide of Judas and Crucifixion Plaque

Suicide of Judas and Crucifixion Plaque

Respond to this question about the Suicide of Judas and Crucifixion Plaque:

Since the British Museum plaque is our earliest surviving representation of the crucifixion of Christ, why might it have taken as much as four hundred years
after the death of Christ for his crucifixion to be depicted in an?