[Healeys] Early BN1 heat shield question

[Randy Hicks]

A question has come up from a non-list member.

He has an early BN1 (body #449) that he is doing a "correct original"
restoration. The top of the foot box usually has a heat shield (right under
the steering column) that's held on by 2 bolts and a second heat shield at an
angle below that.

His chassis has no original holes on the top of the foot box for the bolts and
only one on the slanted side,

So the question is how, if at all, were these heat shields held in place?
Where heat shield always used on early cars?