Its shape has evolved through the centuries, as documented in many well-known paintings.
Today, the shapes of vases have evolved from the conventional ones to modern designs and shapes.
From here, other shapes of limoges porcelain boxes evolved.
The shape of the Lombard Scheme is constantly evolving, and a working party on its future development will report in 1993.
The shape later evolved into a rounded form; these were later called Nuremberg eggs.
The current shape of the cemetery evolved mostly during 19th century - the cemetery area was expanded twice.
It was determined recently that the hammer-like shape of the head may have evolved (at least in part) to enhance the animal's vision.
No record of the initial request is kept and the shape and style only evolves as the metal is worked.
The shape is evolving to be more triangular, deeper and larger.
At the beginning of the 19th century, this shape evolved to look like small parentheses .