[Mgs] Roadster brush seal

[Ed Woods]

List,

I ordered both inner and outer seals for the '72 roadster door glass.
Installed the inners (riveted) this afternoon.

My questions concern the inner seals, called brush seals in the Moss catalog.
My car does not appear to have ever had them.

1. Should a '72 roadster have these inner seals?
2. If so, how are they attached and to what are they attached?

Thanks,

Ed Woods