Lot 66003 – Express delivery 1903-04 surcharged in one operation 15c on 15c, variety imperforate between in a mint vertical pair

1903-04 surcharged in one operation 15c on 15c, variety imperforate between in a mint vertical pair, unused with some original gum, vertical crease and some surface abrasions though exceptionally rare with only 4 examples known to exist in private hands (plus 2 more in institutions); ex “Port Louis”; cert. RPS (1953) (S.G.£10’000).