Gildi overprints 20 aur blue perforated 12¾, 25 aur brown and blue, 40 aur lilac perforated 12¾ and 50 aur light blue and red perforated 12¾ on registered cover from Reykjavik 10-2-1903 over Edinburgh and London to Paris. The 50 aur has the variety double overprint (Facit nr. 58v2), fine/very fine. The 50 aur with double overprint on cover is extremely rare.