I.C.S. Faridkot 1887-98 4a olive-green, error, Official, SGO8aIndian Convention States Faridkot 1887 98 4a olive green, error "SERV CE" overprint, SGO8a. A brilliant quality mint example, well centred and with original gum. A great rarity, and in superb condition, being much the finer of just two examples recorded. The other example is toned with only part original gum. This major rarity of the Indian States is also absent from the Royal Philatelic Collection. The typographic error during the overprint process