7th armoured brigade was the desert rats. they wore a red giboa(rat) on their arms. cavalry regiment was the 11th Hussars (PAO).
Thought it was the 7th Armoured Division, not Brigade although 7th Armoured Bde adopted the desert rat in another form as their insignia. Spent some time at their place once in Soest, Germany. Quite near the Mohne dam which we walked right round twice. Useless information sorry but at the time we were very peed off about it.