Alex
Very much postwar
8876M was listed as a Kirby Cadet Glider ex XM719. This is obviously wrong since XM719 was a canx H.P. Victor....
Since my glider knowledge is not exactly glowingly hot, I would rather like to make step down on further thoughts about it.
8964M was a Lightning F.6 ex XR758 which last unit was 11 Sq and was delivered from Binbrook (I like that name

to Laarbruch as a battle damage repair trainer on 10.5.1988.
9231M was assigned after I stopped cataloguing the M-numbers (1997). My last list file (Sep 1997 issue of SEAR) has it as allocation unknown....
Cheers
Stig