Seat Frame Question

[Spitz]

Can anyone explain these semi circular cut-outs on the front corner of seat frames from a 67?
My MkIII and MkIV frames do not have these but identical in every other way.

[Spitz]

Come on now....I planned on bragging at another forum that the MkI forum was more knowledgeable...lol

[GraemeC]

Better access to the floor start button when the seat is plled forward?

[Spitz]

This is what I was thinking. I assume they made all the seats the same as both my L and R seats have this.
I posed the question in several places and this is the only response so far....mmmm

Perhaps this is a not very often noticed thing

[Toby]

G is right

[mk1]

It's been said before "G is indeed right".