When first delivered to BCAL for summer 1982 both the ex Laker DC-10-10's (now ZD and ZE) wore full BCAL livery with no reference to ''Charter''...
Then the titles were changed to British Caledonian Charter.
BCAL still on the engines.
Later saw the the L dropped off the BCAL on the engines nacelles - hence just 'BCA'
The last change under BCAL/Rank ownership was a full renaming and titles changed to BCA Charter and the a tail Lion enclosed in a white shield surround.
Followed on by the Rank takeover and Calair was formed....