Overlapping in art is the placement of objects over one another in order to create the illusion of depth. Painting is a two-dimensional artistic expression. It has length and width but no depth. It is necessary, therefore, for artists to provide viewers with some sort of perspective in establishing size and distance in paintings. This is where overlapping come into play.
This piece is from the Stilla nation. It was found in the Old Crown tomb. It is a head dress intended only for burial. It was assembled from thin pieces of gold sheet. The ornaments suggest wings or feathers, although the actual purpose is not known.