75147 Miniature Office Chair-BLACK. This famous office chair was the original modern office chair design, it was called "Aluminum Chair". Such design is common place today, but it was a desi8gn breakthrough decades ago. It is exactly 1/12 scale and is made with plastic. 1.5” wide x 2.75” high x 1.5” deep, 3.9cmx7cmx4cm. $15 each chair.