Auction 333-341 Nigeria, Cameroon, Sudan & Worldwide Postal History - Day 4

1855: ½ r. blue-green, wmk. Loops, a used example with three large margins and shaved along frame at top, on 1856 entire letter to Arecibo endorsed "Correo", tied by oval network obliterator in black. Rare usage of pre-philatelic straight line "AGUADILLA" despatch handstamp in blue at right. Slight file fold crosses the adhesive but an attractive and rare usage.