Duke of Edinburgh's Own Rifles Epaulette Slip on

[loupie1961]

I am desperately trying to put together all the Epaulette slip ons badged to the different South African formations deployed in the 6th South African Armoured Division. This is a recent purchase, a slip on badged to the Duke of Edinburgh's Own Rifles, that were part of the 13th South African Motorised Brigade as a component of a Battalion (?) denominated DSR, along with companies from the Transvaal Scottish and the Rand Light Infantry, if I get it right. I guess DSR stands for Dukes, Scots and Rands but I am sure somebody will know better. thank you in advance for your knowledge, gents!