inscribed in chalk on support l.l.: 1/3 inscribed in chalk on support l.r.: Athol Shmith (ith underlined) inscribed in pencil on support reverse u.c.l.: 17 inscribed in fibre-tipped pen on support reverse u.c.: Athol Shmith 1/.3 inscribed in fibre-tipped pen on support reverse u.c.r.: ’73 inscribed in blue ballpoint pen on support reverse c.r.: $75
