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The Queen's Gallery Palace of Holyroodhouse in Edinburgh  currently holds an exhibition called "Gold"  exploring the qualities that make this rare and precious metal an enduring expression of the highest status, both earthly and divine and  giving a glimpse into the different uses of gold, from sacred to ornamental as in this drawing by Pier Francesco Cittadini made on on paper prepared with gold leaf over a reddish ground.

To learn more about the exhibition: http://bit.ly/1GiTadV