Watch List notes:

TWENTY DOLLARS, Knight/Wheeler (1976) (R.406a & b); Knight/Stone (1979) (R.407a &b); Johnston/Stone (1983) (R.408); Johnston/Fraser (1985) (R.409a & b); Phillips/Fraser (1989) (R.411); Fraser/Higgins (1990) (R.412); Fraser/Cole (1991) (R.413); Fraser/Evans (1993) (R.415i) AAA 004488. Uncirculated. (11)