Bren tripod t&e adjustment

[Kev G]

Thanks for the pictures cal50 appreciated.
I presumed the 37 number on mine was a year date as 1937 was the date of the contract for Iraqi Brens.
As yours shows 59 in western Arabic and also eastern Arabic I'm now presuming this is the tripod number.
The 37 was also why I thought these were Iraqi but the usual inspection/acceptance mark for Iraqi ordnance is the Jeem which I cant find on mine ?
Anyone any ideas on the crown marking and country connection ?