Pin Number Mnemonic is a work in the series Self Centred Objects, clandestine street furnishings that have been made or imagined for a London neighbourhood. For this project sets of tiles have been designed and placed within easy view of cash or ticket dispensers. Each set consists of four square tiles each 5cm x 5cm and then either 2mm, 4mm, 6mm or 8mm in thickness and cast from a section of the surface on which they are placed. As such they are inconspicuous to those who are not expecting them to be there, while to the artist their arrangement serves as a mnemonic for a PIN number.

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