Gail Hastings, Measuring the missing, 2013, watercolour and lead pencil on cotton, Vault magazine issue 4, 85.4 x 22 x 0.8 cm; watercolour and lead pencil on paper, 39.3 x 26.7 x 4.5 cm; watercolour and lead pencil on cotton, 9 x 5.4 cm, overall measurement: 87.8 x (31.2 x ‘x’) x 5.4 cm (where x is the distance between the bag and the missing centre), TCG013522