1913-24 2s6d Purple & Green mint nh top right corner marginal plate block of four with co-extensive "Jubilee" line, mounted in the margin only, very fine and rare positional item (SACC 13, R63'800) Expertise: Cert. BPA (2018) (Image)

1913 King Head 2s6d purple and yellow green shade, bottom left corner marginal control number '1' block of four, mint and or nh, very fine and a scarce block in this distinct shade (SACC 13, R16'900+) (Image)

1913 King Head 2s6d purple and green, top right corner marginal control number '1' block of six, mint and or nh, very fine and scarce (SACC 13, R13'800+) (Image)

1913 King Head 2s6d purple and green, bottom right corner marginal control number '1' horizontal pair, mint nh, very fine and scarce (SACC 13, R15'000+) (Image)

1913-24 5s Purple & Blue mint nh top right corner marginal plate block of four with co-extensive "Jubilee" line, mounted in the margin only with a small tone spot at the top, very fine and rare positional item (SACC 14, R137'500) Expertise: Cert. BPA (2018) (Image)

1913-24 5s Purple & Blue mint nh lower left corner marginal plate pair with co-extensive "Jubilee" line, very fine and scarce positional item (SACC 14, R45'000) (Image)

1913 King Head 5s purple and blue, right marginal block of four, mint and or nh, very fine and scarce (SACC 14, R17'500+) (Image)

1913-24 10s Deep Blue & Olive-Green mint nh top left corner marginal plate block of six with co-extensive "Jubilee" line, cert. unfairly states "tiny adhesions on stamp 6", very fine and very rare positional item (SACC 15, R209'000) Expertise: Cert. BPA (2018) (Image)

1925 Airmail issue set of four in pairs showing the figure value in circle in the margin, mint nh, a little perf. separation, very fine and scarce (SACC R13'520, ca.£720) (Image)

1934 1d Grey & Carmine mint nh top left corner marginal block of four imperforate variety, very fine, cert Brandon (1987) (SG £360+) (SACC R5'000) (Image)

1974 Definitives Flowers 3c mint nh imperforate block of six, trial print of flowers only in purple, very fine (SACC 361d, R10'500) (Image)

1974 Definitives Flowers 3c mint nh imperforate block of six, trial print of flowers only in red, very fine (SACC 361d, R10'500) (Image)

Officials: 1935-49 "SUID-AFRIKA" hyphenated 6d green and vermilion die I, showing 'FALLING LADDER' variety (R5/10) on the lower right stamp in mint block of 4, variety pair unmounted, very fine and rare (SG £1'400) (Image)