Sheffield city council engineers dept AEC M+ammoth Major 6

I am keen to find photos and history relating to YWJ 548 G the AEC was new to the Sheffield city engineers dept spending 10 years in there service coloured Maroon it was sold through BCA Auctions at Brighouse, being purchased by William Nuthall being converted into a heavy recovery vehicle and painted yellow, I am in touch with Mr Nuthall who kindly sent me photos of it whilst in his ownership, I really would like history and pictures of it in the city councils ownership as I intend to restore into that livery.