TONGA 1973 (VARIETY) T$1.50 COMMONWEALTH GAMES WITH DOUBLE OVERPRINT
T$1.50 Commonwealth Games, Christchurch official airmail single, imperf, self-adhesive gum, with clear doubling of overprint (affecting the year, inscriptions and obliterator). Very difficult. Rarely appears on market. SGO111a; SCCO77var
Note: originally issued 20 July 1971 without overprint to highlight the South Pacific Games, Tahiti
