Mk3 on Mini (all internal hinged models) inner door frame bottom drain hole repair section with outer skin lip for the R/H door, had 3 drain holes also see part number
MS34L for the repair for the bottom of the door.
Technically you cannot fit both MS33 and MS34 together--MS34 being mainly for when bottom of door and inner skin have rottted-MS33 when just the bottom has gone by the drain holes