The Monthly News Letter was published by Conservative Central Office in a similar size and format to the Weekly News Letter, and consisted of 4 pages of print. Very few copies survive, from March 1966 only [A note dated 26/04/1978 by Geoffrey Block of the Conservative Research Department states that 4 bound volumes containing issues from 1949-1969 were believed to be held at Conservative Central Office but their whereabouts are unknown.] The Monthly News Letter was re-named the Monthly News from November 1966, but its format was otherwise unchanged.