Mini 'rover' door sill repair panel, right hand side
MS16R- DOOR STEP SHAPED PANEL MK3 RH
These door step panels actually have the start of the curves at the end where they are able to rust. This is the Right hand side, see MS16L for left hand. You can cut the straight sections out to use as repair sections on sliding window/Australian windup window type door frames MK1/2 as the profile is the same.