Patina – the visible signs of age on the surface of a material – is generally valued as a positive form of decay, and is manifest in a panoply of material forms: distressed wood, weather-beaten stone or brick, faded wallpaper, well-worn textiles, rusted ironwork, to name but a few. Whatever form it takes, patina signals the desire for a visual sign of authenticity, that is, material imbued with a history that speaks of ‘natural’ processes accrued over time. Paradoxically, in many cases, these visual signs of ageing are achieved very quickly and forcibly; hence, the widespread criticism of patina as yet another symptom of the post-modern obsession with surface at the expense of ‘authentic’ depth.
Yet, patina can also be interpreted as a critical form of visuality. In a recent talk at the University of Manchester, archaeologist Shannon Lee Dawdy focused on the meanings of patina in the buildings of New Orleans, pre-…
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