From the manufacturer:
Classic Mini saloons (sedans) of this period had a two-piece headlining frame with the canopy glued and stapled to them. Early cars had light grey material, but after 1962 all cars had the special Cream Crackle material. Included in the kit is a pair of "C" post panels and a piece of material to go under the rear window.These frames are no longer available, so make sure you keep them safe if not in the car during restoration. Other colours are available to suit your requirements.
Special order, lead time may be required. Actual colors may vary from those shown.