[Healeys] Battery cable flange

[Richard Kahn]

While nosing around in the boot, I realized the battery cable going through
the wall between the battery and the gas filler tube (BJ8) had a metal flange.
On my car, it is between the wall and the Armorcor  (not visible from the
boot). On Ebay Healeys for sale, half had it exposed. The Anderson /Moment
Restoration book shows it mounted as mine. Any comments on the correct way?
Rich Kahn