GJ.HB 21, 1966 Philatelic Exposition printed on MARBLED PAPER (very thick, against the light it shows an evident streaks appearance and with almost invisible watermark), excellent quality, very rare. Along example on normal paper for comparison (Image)

GJ.107a, 1994 Football World Cup, printed on UNSURFACED PAPER (not very glossy, normal paper is very glossy, we include an example for comparison), this variety will be included in the next edition of the GJ catalog, VF quality (Image)