WM20 62937 was part of contract C11101, it originally had the WD Serial C4666645 and it was delivered from BSA on 27/6/42, it may have been in Khaki Green No.3 or mid war Brown?
WM20 70634 was originally in contract C12424 with the Serial C4706731.
I can't find either in the post war key cards or the Australian ledgers but there are some pretty close numbers there, where in the world is it located?