Mantlets intended for the Tiger (P) had a notch in their lower left corner, a quick fix to stop the turret colliding with the hull.
With cancellation of their intended vehicle, these mantlets ended up on Tiger E tanks at random. This example is on Tiger "131" at the Tank Museum UK.
One of these special mantlets was installed on Tiger "217", commanded by Otto Carius. This is a detail from a photo of Tiger "217". The notch is pointed out.
Takom provide a mantlet that is intended to be the correct version, but as indicated in this image, Takom's part does not have the corner notch.
You can improve accuracy of this kit by cutting a notch to match the photo of Tiger "131".