(a) inscribed in fibre-tipped pen on reverse c.: Richard Dunn / Tools of Coincidence / No1 Left / 1980 / 1 (in a circle) L (b) inscribed in fibre-tipped pen on reverse c.: Richard Dunn / TOOL of COINCIDENCE / - No1' (o underlined) Right / 1980 / 1 (in a circle) R (c) inscribed in fibre-tipped pen on reverse c.: R Dunn / T of C No2 (T and C underlined) / Left / 1980 / 2 (in a circle) L (d) inscribed in fibre-tipped pen on reverse c.: TOOLS OF COINCIDENCE / No2 (o underlined) 1980 / Richard Dunn / 2 (in a circle) R (e) inscribed in fibre-tipped pen on reverse c.: TOOLS OF/ COINCIDENCE / No3 (o underlined) Left / 1980 / Richard Dunn / 3 (in a circle) L (f) inscribed in fibre-tipped pen on reverse c.: T of C (T and C underlined) / No3 (o underlined) / 1980 / Right / R Dunn / 3 (in a circle) R (g) inscribed in fibre-tipped pen on reverse c.: T of C (T and C underlined) / No4 (o underlined) / 1980 / R Dunn / 4 (in a circle) L (h) inscribed in fibre-tipped pen on reverse c.: TOOLS OF / COINCIDENCE / No4 (o underlined) / 1980 Right / Richard Dunn. (i) inscribed in fibre-tipped pen on reverse c.: T of C (T and C underlined) / No5 (o underlined) 1980 / R Dunn / 5 (in a circle) L (j) inscribed in fibre-tipped pen on reverse c.: TOOLS OF COINCIDENCE / No5 (o underlined) 1980 / Right / Richard Dunn / 5 (in a circle) R (k) inscribed in fibre-tipped pen on reverse c.: T of C (T and C underlined) / No6 (o underlined) / Left / R Dunn 1980 / 6 (in a circle) L (l) inscribed in fibre-tipped pen on reverse c.: TOOLS OF COINCIDENCE / No6 (o underlined) 1980 / Right / Richard Dunn / 6 (in a circle) R
