1958-65 3d Wilding deep lilac mint n.h. mint block of twelve from the upper right of the sheet, the upper portion of the block showing a spectacular perforation error due to a paper fold; an attractive block with great visual appeal; also a 4d Machin mint n.h. block of six from the upper left corner showing a similar perf. error. (Image)

1961 Parliamentary Conference 6d mint n.h. with variety gold omitted, very fine and scarce modern error, incl. matching normal for comparison (S.G. £1'800). (Image)

1961 Parliamentary Conference 6d mint n.h. with variety gold omitted, very fine and scarce modern error, incl. matching normal for comparison (S.G. £1'800). (Image)

1963 Paris Postal Conference Centenary 6d on phosphor paper mint n.h. imperforate imprimatur left marginal with "BPMA" handstamp on reverse, very fine and scarce. (Image)

1964 Shakespeare Festival 3d (Esparto paper) imperforate imprimatur with a "BPMA" handstamp on reverse, mint n.h. right marginal single, very fine and scarce. (Image)

1964 20th International Geographical Congress (ordinary paper) set of four imperforate imprimaturs with NPM handstamps on reverse, mint n.h., very fine and rare as only ten sets were released from the National Postal Museum archive (Image)

1964 Geographical Congress 4d with variety violet omitted (face value) in mint n.h. lower right traffic light corner block of four, small wrinkle at the top of the lower left stamp otherwise fine, very rare positional multiple with only a marginal traffic light pair recorded otherwise, incl. matching normal traffic light block (S.G. £900 as singles). (Image)

1964 Geographical Congress 4d with variety violet omitted (face value) in mint n.h. left marginal, pencil sheet pos. number on reverse, very fine (S.G. £225). (Image)

1964 Geographical Congress 4d with variety violet and red-brown omitted (face value and dock walls) in mint n.h. left marginal, very fine, incl. normal for comparison (S.G. £425). (Image)

1964 Opening of the Forth Road Bridge 6d showing variety light blue omitted, along with normal 3d tied to plain first day cover with hand-written address by Dunfermline machine cancel, a very fine example of this very rare usage with less than 6 are recorded (not priced used or on cover by S.G.). (Image)

1965 Post Office Tower 3d mint n.h. with variety olive-yellow omitted (tower), very fine and one of the most spectacular of the modern errors, incl. normal for comparison (S.G. £4'750). (Image)

1966 World Cup errors/varieties group incl. 6d phos. with variety black omitted mint n.h. (S.G. £2'000); 1s3d phos. with strong shift of red mint n.h., 1s3d phos. with strong shift of blue mint n.h. and 1s3d with strong shift of light yellow-olive mint n.h. (stain at top left), plus matching normal singles, a scarce group. (Image)

1966 Birds, ord. paper, two se-tenant blocks with colours omitted incl. bright blue omitted (affecting blue tit and water) with fault at top of blue tit stamp (S.G. £1'100+), and lower marginal block with reddish brown omitted (affecting blackbird and robin legs), very fine (S.G. £200+), plus mint n.h. block with shift of red and two normal blocks for comparison. (Image)

1966 4d Battle of Hastings mint n.h. block of twelve variety imperforate with sheet margins at either end; very fine and very rare multiple, being part of the single sheet discovered that contained 20 imperforate strips (£3'600+). Note: This block has been generously donated to be sold on behalf Medicines Sans Frontières and is sold without reserve, so please bid generously. (Image)

1966 Christmas 3d mint n.h. with variety gold omitted on two examples in a lower right corner marginal block of eight, with a further three showing partial to nearly completely omitted gold , a few bent perfs at top left otherwise very fine and scarce error, with dealer David Field handstamps in the margins. (Note: Although not listed by S.G. due to the possibility of the gold being removed chemically, the fact that this block shows a progression of the omission proves that this is a genuine error). (Image)

1967 EFTA 9d and 1s6d group of five with colours omitted plus 1s6d mint vert. pair with strong shift of black, errors incl. 9d phos. brown omitted mint n.h., 9d phos. yellow omitted mint (disturbed gum), 1s6d phos. brown omitted mint n.h., 1s6d ord. yellow omitted mint n.h., and 1s6d phos. new blue omitted mint n.h., very fine, plus matching normals (S.G. £550+). (Image)

1967 EFTA 9d with black, brown, new blue and yellow omitted in mint n.h. right marginal block of four, with pencil sheet pos. numbers on the back of each stamp and Derek Worboys hs in margin, very fine and spectacular modern error, incl. matching normal block for comparison (S.G. £3'600 as singles). (Image)

1967 EFTA 9d with black, brown, new blue and yellow omitted mint n.h., with pencil sheet pos. numbers on the back, very fine and spectacular modern error (S.G. £900). (Image)

1967-70 Machins 1s6d, gum Arabic, two phosphor bands, with greenish blue omitted in mint n.h. lower right corner traffic light block of four, very fine, incl. matching normal block for comparison (SG £640+), plus 1s9d mint n.h. block of six showing printing smudge affecting the lower right stamp. (Image)

1967-70 Machins 1s6d Prussian blue and indigo (phosphorised paper) imperforate imprimatur with a "BPMA" handstamp on reverse, mint n.h. left marginal single, very fine and scarce (Image)

1967 Paintings 4d and 1967 Christmas Paintings 3d and 4d each with gold omitted (Queen's head), the latter mint l.h. and the others n.h., very fine, incl. normals for comparison (S.G. £360). (Image)

1967 Christmas Paintings 3d with variety imperforate at left, a mint l.h. marginal single with cylinder numbers in the margin, very fine and rare, incl. normal cylinder marginal single for comparison (not listed by S.G.). (Image)

1967 Christmas Paintings 1s6d mint n.h. with variety ultramarine omitted, very fine, incl. normal for comparison (S.G. £575). (Image)

1968 Bridges 1s9d mint n.h. with variety gold omitted, very fine, incl. matching normal for comparison (S.G. £275). (Image)

1968 Paintings 4d mint n.h. with variety gold omitted (Queen's head and face value), very fine, incl. normal for comparison (S.G. £250). (Image)