This painted bust of Hatshepsut is part of a monumental statue of the female pharoah that once was on her mortuary temple at Dier al Bahri.
(See Hatshepsut's Mortuary Temple images on page 5 of this gallery)
There are several of these sculptures still in situ at her temple at Dier el Bahri.
The bust is about 4 feet tall and dates roughly from the New Kingdom 18th Dynasty reign of Hatshepsut - 1490-1470 BC.

35mm slide scanned to CD