Here is a rare example of the Royal Air Force RAF Officers Full Dress Helmet circa 1921-39. This dress helmet features a black chromed leather skull trimmed with black nutria fur. Plated gold cord with black patent leather chinstrap. Also having an Air Force badge and removable ostrich feather cockade. Full dress helmets like this one were discontinued at the outbreak of WW2. Some loss to nutria fur noted as seen in pictures.