What does the word 'cardboard' denote in the poem why has this word been used

  • A photograph poem

    • In 1962 she and her husband Alan Brownjohn were elected as Labour councillors in the Wandsworth London Borough Council.

    Markus natten

  • Shirley toulson legacy and influence

    • Ar williams

      A photograph poem
    Markus natten Shirley toulson legacy and influence
    Ar williams What does the word 'cardboard' denote in the poem why has this word been used