The Walnut Halifax’s trademark design element is continuous, equal-height back and arms.  Often the arms curve inward creating a long line from arm to arm.

Some designs include ornate elements to them such as the sofa featured here; however, more often substitute ornate for more comfortable features such as more cushion throughout (especially the seated portion of the sofa)

Also, Walnut Halifax sofas are known for an exposed wood trim along the top of the back and arms.  However, you can find Halifax sofas in the classic Walnut design without the wood trim.