ometime in the fifteenth century, artisans working in the Low Countries began to create a new S type of art object. Called prayer nuts, these new creations appear at first glance as very small pieces of wood, just 10 to 15 cm in diameter. But then you open them up, and that is when the real amazement begins, the inside offers entire scenes depicting people and objects, all microsized. Look very, very carefully and you might see that one person has buttons on his shirt, or
