1900 Large Hermes Heads Surcharges, complete set of 4 values perf. 11 1/2, used. Color shades, wide and narrow "0" and space 1 /1/2mm. A total of 18 different stamps. Very fine and difficult to be collected. (Hellas 160+160A+160B+160a+160Aa+161+161A+161a+161Aa+162+162A+162B+162C+162Ba+162Ca+163+163A+164I).