Or Let Your Guard Down?18th Century Indian Mail Shirt16th Century Mitten GauntletBelgian Shako HatAircraft Canvas Panel17th Century Lobster Tail HelmetDutch Officer's Chapeau1881 BroadswordPortuguese Officer's Cap Bonhams Sale 18400 — Antique Arms and Armor, Sporting Guns, and Aviation Memorabilia 220 San Bruno Avenue, San Francisco, 15 Nov 2010 at 10:00