It's not something from a plane crash...
The shoulders frame is made from aluminium strip, which is easily bent to shape.
The hole for the neck bolt from the head is widened to allow for tilt.
There's another view of this here.
The shoulders frame is made from aluminium strip, which is easily bent to shape.
The hole for the neck bolt from the head is widened to allow for tilt.
There's another view of this here.