1913-14 Roos 3d olive, die I, mint, bottom right corner sheet marginal block of four showing the stunning variety bottom pair IMPERFORATE ON THREE SIDES, an important showpiece of great rarity (SG £75'000+) (Image)

1929-30 Roos 5s grey and yellow, mint, bottom gutter marginal inscriptional pair, fresh, very fine and scarce (Image)

1929-30 Roos 5s grey and yellow, mint, short perfs., fine (Image)

1931-36 Roos 6d chestnut, die IIB, mint, bottom gutter marginal inscriptional block of four, fine (Image)

1931-36 Roos £2 black and rose, die II, mint, bottom gutter marginal inscriptional pair, very fine and rare (SG £8'500) (Image)