George II 1747 Guinea, first year for old head, very rare date

George II (1727-60), gold Guinea, 1747, old laureate head left, legend surrounding, GEORGIVS. II. DEI. GRATIA., legend ends with A level with truncation, rev. crowned quartered shield of arms, date either side of crown, abbreviated Latin legend, M.B.F.ET.H. REX. F.D.B.ET.L.D.S.R.I.A.T.ET.E edge grained, weight 8.26g (Schneider -; EGC 610 R3; Farey 900 VR; MCE 322; S.3680). Perhaps once in a ring mount, polished, fine though a very rare date.