WASHINGTON.- The Smithsonians National Museum of American History has acquired the Eye of Horus bass guitar from Phillip Phil Lesh, formerly of the Grateful Dead. The bassist purchased the handmade instrument in 2009 and used it extensively, crediting the guitar with having taught him to play in a different style. The modern, state-of-the-art bass will be preserved as part of the museums extensive and diverse collection of instruments, including Princes and Eddie Van Halens guitars. Lesh came across German master instrument-maker Jens Ritters work online and was struck by the design of his custom instruments. After meeting Ritter, he commissioned an electric bass guitar for his own use. The Eye of Horus is one of a limited edition of 10 bass guitars and is a Jupiter-style six-string with a body made out of mahogany and neck made out of maple. The neck als