Imperial Japanese Naval Officer's summer cap

An Imperial Japanese Naval Officer’s white cover summer cap, circa 1939-45, constructed of dark blue wool with a pull-over white cover affixed to the reverse with string, the centreband of ribbed black cloth and insignia of machine-embroidered gold bullion wreath and nickel silver chrysanthemum at the peak, a cockade with a metal anchor and gold bullion, all on a black badge cloth roundel, the black patent leather chinstrap held in place by pair of gilded bronze naval buttons, the interior fully lined in purple rayon with black leather sweatband and brown bow to the rear