David/Clive;
I should have added to my last post: "What you are looking for are":
The War Diaries for:
Serial 657 - No. 1 (Overseas) Detachment, R.C.O.C. (possible dates Jul 40 to Jan 46)
and
Serial 658 - No. 2 (Overseas) Detachment, R.C.O.C. (possible dates Jul 40 to Mar 42)
respectively.
Cheers