The majority of all Minis had painted "A" post pillars in all sorts of colours. We have developed a kit that fits exactly in this space with a fibreboard panel covered in black leathercloth material with double sided tape on the reverse side. This piece is adhered to the "A" post and a flap on the outer side is held in place by the draught excluder on the door post. These come as a pair. 

Newton Commercial Part No - DT3080