Total weight of 30.45g. Hallmarked 9ct on the medal, suspension loop and the clasp attachment (the named bars on the ribbon also appear to be gold, although not hallmarked).
Royal Antediluvian Order of Buffaloes. Order of merit awarded to Bro Walr E. Horwood C.P. by Ye Olde Lake loadge No.5459, 21 Feb 1930, with additional bars for 1906 & 1921.