Issues are as follows in good condition unless stated, some issues are multiple as noted (QTYx)-
1972 Aug
1973 Jan, May, Aug
1974 Feb, Sept, Nov
1975 Jan, Nov
1976 Jul, Aug, Nov(qty2)
1977 Jan Mar
1978 Feb, Mar, Apr
1980 Jun, Nov
1981 Dec
1982 June, Nov, Dec
1983 Jan, Feb, Mar(qty2), Jun, Jul(qty3), Sept, Nov, Dec
1984 Feb, Apr, May, Jul, Aug, Oct
1985 Feb Sept, Nov
1986 May, Jul, Sept
1988 Jan, Apr, Aug
1990 Jan, Feb, Aug, Oct, Nov
1991 May, Jun(qty2), Jul(qty2), Aug, Nov
1992 Feb(cover damaged), Mar, Jun, Oct, Nov, Dec
1993 Jan, March, Apr, May, June(qty3), Jul(qty2), Sept, Oct, Nov, Dec
1994 Jan, Mar, Nov
1995 Jan, Feb, Mar, May, Jul, Aug, Sept(qty2), Oct, Nov(qty2), Dec
1996 Jan(qty2), Mar, Jun(qty2), Oct(qty2), Nov(qty2), Dec
1997 Jan, Feb, Mar, Apr, Jun, Aug, Nov
1998 Feb, May, Jul