STRIKING VARIETY: GJ.HB 27, 1978 Football World Cup with VARIETY: "ROSE background instead of salmon", extremely rare, probably unique. Along a normal example for comparison. (Image)

FANTASTIC RARITY AND RECENT FIND: GJ.90a, 1990 Aerophilately Exhibition with variety PRINTED ON GUM, unkwnon and ONLY ONE in existence until now, it was bought by chance at the post office by a stamp collector from the north of Argentina and stored until now from the day it was issued, excellent quality, unique opportunity! (Image)