1928 Eagle, 25c perforated (seven) and imperforate (two), the complete set of nine trial colors, h.r., fine-v.f., signed Ruidiaz, Sanabria, etc. Sanabria states these trial colors are proofs, but were sold at the post office, only 50 of each printed (Cat No. San.6-14) (Image)

Est.US$5,000

1939 Printing in Mexico, 40c slate green, imperf. vertical pair, unused without gum, v.f., cat. $700 (Cat No. C98a) (Image)

Cat. $700, Est.US$250

1929 2c-1p, set of eight, h.r., fine-v.f., only 128 sets were overprinted, signed Champion, etc., cat. $3350 (Cat No. CO3-10) (Image)

Cat. $3350, Est.US$1,500