This item sold on September 12, 2012.
The total length is right around 30". The head is about 6" long.
Made from wood, sheet brass, and cotton, with a bit of black paint at each end. The shaft is made from acacia- a wood which was grown in and around Egypt at the time, and regularly used for this sort of thing. The Hebrews called it shittim, and used it to build the Ark of the covenant.
The head is based on a few different designs I've seen. There is some dispute in archaeological circles at to what the head actually was. Some say it was a jackal, or Anubis, while others say it was a mythological creature. Regardless, it was normally thin and vaguely canine.
The head is carved from poplar, using a combination of hand and power carving, and the head and foot are held on using pegged joints. The brass is pleated closed, and pinned with brass nails. The handle is a full-around weave of off-white 100% cotton.
I've attempted to restrict the materials (acacia, cotton, poplar) to those which were actually used in ancient Egypt. The one exception is the brass- substituted for gold due to cost. Brass and gold share virtually the same alchemical and symbolic meanings.