"My chair design incorporates the engineering that the Shaker's pioneered," he said.

The architect has also explored variations on chair design.

The chairs were designed to complement the table and represent one set of variations on a chair design that I have been experimenting with for years.

Near the end of the 1950s, his chair designs became much more unconventional, with no legs or discernible back.

Some of his chair designs are meant as political statements.

This was to see the first appearance of Mackintosh's trademark high-backed chair design.

The Ant chair is a classic of modern chair design.

However, the chair design proved too unstable, tipping very easily.

Throughout history, virtually every furniture maker and every prominent architect has had at least one chair design to his name.

He had a strong interest in chair design because he had back problems of his own.