I was looking for NORTH EASTERN DAIRY CO. LTD. v. DAIRY INDUSTRY AUTHORITY OF N.S.W. ; CARROLL'S FOOD MART PTY. LTD. v. DAIRY INDUSTRY AUTHORITY OF N.S.W.

(1975) 134 CLR 559

17 October 1975 and found the search result was Nevill v Fine Art and General Insurance Co Ltd.