1970s Salt Licks Issues 1970 March V18 #2 1970 August V 18 #7 1970 September 1970 September 1970 November 1970 December 1971 January 1971 March 1971 April 1971 May 1971 July 1971 October 1971 November 1971 December 1972 January 1972 February 1972 March 1972 May 1972 June 1972 August 1972 October 1973 October 1973 December 1974 January 1974 March 1974 May 1974 June 1974 September 1974 October 1975 January 1975 March 1975 June 1975 August 1976 May 1976 December 1976 June 1976 September 1977 April 1977 July 1977 September 1978 January 1978 March 1979 January
