[Dried mango ink, clove oil, Australian ochres, 24k gold leaf, Indian ink on traditional gesso on 640gsm archival paper]
 
The urine of cows (and humans) is found as an ingredient in many a paint recipe, however from the 1900s synthetic ammonia replaced it. There was, intriguingly, a bright pigment called Indian Yellow which was introduced into the European palette of renowned painters in the late 1700s. It took a century to discover its true source - the urine of Indian cows fed exclusively on mango leaves. 
 
A4 size Australian Hand-Made Tasmanian Oak Timber Frame
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