are uncommon in Renaissance panel painting. Here is one exception, part of a series of three huge panels, done mostly in egg tempera, commemorating a minor Italian battle (the Battle of San Romano) by Paolo Uccelo. This one is in the National Gallery in London. I've seen it's sister painting in the Louvre. One impressive aspect is the gilding. All of the armor is done in silver leaf, punched and scribed with three dimensional patterns of mail and plate, then glazed with thin layers of asphaltum ground in oil. Very impressive.