Hi Chris
Here are some more from a mate;
All my BRENs are NZArmy ones.
1) Enfieild ('ED') MkI (date of manf. milled away) s/n F5721 N^ZDP4 on action DP38 on lower
2) John Inglis ('JI') MkII 1941 s/n N7433 NZ^A3XXX
3) Damlier ('D') MkII 1942 s/n S8448 NZ6779
4) MonoType ('M67') MkII 1943 s/n U2030 NZ6878
2; 3 & 4 have transit boxes with matching s/n painted on the end of lids.
These are as copied from the email I received. I figure the ED gun is early 1941.
Cheers
Rod