A rare Indian head emblem from the 103rd Aero Pursuit Squadron of the Lafayette Escadrille, an arm of the French Air Services populated by American volunteers, is up for auction at Bonhams in San Francisco on November 11th, 2010. The panel, cut from a Spad VII by American mechanic Sgt. Emil Forst, is gray/green canvas, and is expected to bring 15-20,000 dollars. Sgt. Forst served during the battles of the Aisne, Champagne Marne, St. Mihiel and the Meuse-Argonne.