Comprises: CRD/D/1/2/4/1 - Official Group - Official Group - Includes notes, annotated papers and draft manifestos from Official Group meetings, Mar 1974-Nov 1974; CRD/D/1/2/4/2 - Opinion Polls - Includes notes, annotated papers and statistics on voter behaviour, Apr 1971-Jul 1974; CRD/D/1/2/4/3 - Opinion Polls - extracted newspaper clippings from CRD/D/1/2/4/2 relating…