British Empire - Day 6

1916 1/2d to 1s set of eight on OHMS cover tied by Field Post Office "G.X." 3 MR 16 double circle ds, sent by the well-known philatelist H. Pirie Gordon from HMS "Exmouth" with two censor cachets, vertical creases, fine and rare cover with the complete set; ex Eley (S.G. £3'500 for set off cover).