In May 1961 at Car No. 101292, the shut face plate was changed to incorporate an inboard vertical tab and a drip/drain trough in the curved top surface. This was accompanied by a change of the door seal finisher chrome trim piece which then stopped short of running over top of the shut face panel. (This photo shows incorrect door seal).

Australian built CKD cars may have gotten these parts at a later date, as here are some reports of MK-II cars there not having this feature. It is not clear yet when the switchover occurred in the Australian cars.