1911 (Jan) 1d, 3d, 4d and 5s "Mackay" unadopted essays in violet on carton paper, cut to stamp size, some light surface abrasions, scarce (Image)

1913 Kings Head 5s purple and blue, mint nh bottom right corner sheet marginal pair with control number '1', fresh, very fine and extremely scarce (SACC 14, ZAR 30'000) (Image)

1913 Kings Head 5s purple and blue, mint nh bottom left corner sheet marginal pair with control number '1', fresh, very fine and extremely scarce (SACC 14, ZAR 30'000) (Image)

1913-24 £1 green and red, mint, fine (SG £650) (Image)

1913-24 Kings Head £1 green and red, mint showing bottom marginal with control number "1", very fine and scarce (SG £650) (Image)

1913-24 Kings Head £1 green and red, mint showing bottom marginal with control number "1", very fine and scarce (SG £650) (Image)

1913-24 £1 green and red, used, fine (SG £350), cert. PFSA (2007) (Image)

1913-24 £1 pale olive-green and red, mint, fine (SG £850), cert. PFSA (2008) (Image)

1913-24 £1 pale olive-green and red, used, fine (SG £1'200), cert. PFSA (2008) (Image)

1927 Pictorials 1/2d to 10s mint se-tenant pairs, mint nh, very fine & scarce (SACC 29L/31L, 33/39, ZAR 35'940) (Image)

1927-30 10s bright blue and brown, mint nh left sheet marginal se-tenant pair, fresh, very fine & scarce (SACC ZAR 9'500) (Image)

1927-30 10s bright blue and brown, mint nh left sheet marginal se-tenant pair, showing small shift in the vignette, fresh, very fine & scarce (SACC ZAR 9'500) (Image)

1927-30 10s bright blue and brown, mint, bottom marginal inscriptional se-tenant pair, very fine and scarce  (Image)

1927-30 10s bright blue and brown, mint, bottom marginal inscriptional se-tenant pair, very fine and scarce  (Image)

1927-30 10s bright blue and brown, mint, corner marginal se-tenant pair, fine  (Image)

1927-30 10s bright blue and brown, aniline ink, used block of four, with two se-tenant pairs, very fine  (Image)

1927-30 10s bright blue and brown, mint, se-tenant pair showing shifted centre error, light crease, fine  (Image)

1930-44 Ship 1d black and carmine, mint se-tenant pair, right stamp showing FRAME OMITTED variety, fresh, very fine and a rare error, cert. BPA (2015) (Image)

1964 Nursing Association 12 1/2c bright blue and gold, perf. 15 x 14, mint nh right sheet marginal showing GOLD OMITTED variety, an important and valuable modern error (SACC 249a, ZAR 160'000+), cert. BPA (2015) (Image)

1987 Unissued Bible 40c blue, mint nh, fresh, very fine and rare (SACC 638, ZAR 14'000) (Image)

2010 World Cup mint nh IMPERFORATE miniature sheet, very fine and extremely rare as only three sound sheets are recorded (SACC 2030a, ZAR 80'000) (Image)