At formal events, or "collar days", of which there are 34 throughout the year, such as New Year's Day and royal anniversaries, Knights and Dames Grand Cross wear the Royal Victorian Order's livery collar, consisting of an alternating string of octagonal gold pieces depicting a gold rose on a blue field and gold oblong frames within which are one of four inscriptions: "Victoria", "Britt. Reg." (Queen of the Britons), "Def. Fid." ("fidei defensor", or Defender of the Faith), and "Ind. Imp." (Empress of India). The chain supports a larger octagonal medallion with a blue enamel surface edged in red and charged with a saltire, over which is an effigy of Queen Victoria; members of the order suspend from this medallion their insignia as a "badge apendant". Though after the death of a Knight or Dame Grand Cross their insignia may be retained by their family, the collar must be returned. Knights and Dames Grand Cross also wear a mantle of dark blue satin edged with red satin and lined with white satin, bearing a representation of the order's star on the left side.