1927 500r on 50r gray, surcharge shifted downwards with value at top instead of bottom, block of four, dried gum, perf. separations, fine-v.f., rare multiple, signed Sanabria (Sanabria 7d) (Cat No. C7var) (Image)

Est.US$1,000

1929 Issue, compound proof of 50r and 1000r in lilac, horizontal gutter pair, v.f. and unusual (Cat No. C17,21P) (Image)

Est.US$500

1930 Graf Zeppelin, four imperforate large format non-denominated die proofs (165x130mm) in red, green, blue and black, printed on grayish wove paper, one pencil endorsed, some toning, very rare (Cat No. 4CL1-3P) (Image)

Est.US$1,500