Proof is a printing term applied to all individual impressions made before work on a printing plate or block is completed, in order to check progress of the image

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  • Richard Hamilton, 'Stage Proof 18' 1972
    Richard Hamilton
    Stage Proof 18 1972
    Screenprint on paper
    image: 683 x 862 mm
    Presented by the artist 1977© The estate of Richard Hamilton
  • Leon Kossoff, 'Going Home [stage proof]' 1979-84
    Leon Kossoff
    Going Home [stage proof] 1979-84
    Intaglio print on paper
    image: 404 x 514 mm
    Presented by the artist 1986© Leon Kossoff
  • Sir Eduardo Paolozzi, '[no title: trial proof for Conditional Probability Machine]' 1970
    Sir Eduardo Paolozzi
    [no title: trial proof for Conditional Probability Machine] 1970
    Intaglio print on paper
    image: 305 x 219 mm
    Presented anonymously through the Friends of the Tate Gallery 1980© The Estate of Eduardo Paolozzi

Also referred to as ‘trial proof’ or ‘colour trial proof’. This should not be confused with the terms artist’s proof (AP) and printer’s proof (PP) which are impressions of the finished print made in addition to the published edition for the artist or printer.