WASHINGTON (AP) — One of the most famous portraits of George Washington will soon get a high-tech examination and face-lift of sorts with its first major conservation treatment in decades.

The Smithsonian’s National Portrait Gallery has begun planning the conservation and digital analysis of the full-length “Lansdowne” portrait of the first president that was painted by Gilbert Stuart in 1796, museum officials told The Associated Press. The 8-foot-by-5-foot picture is considered the definitive portrait of Washington as president after earlier images in military uniform.