1929 Postal Union Congress
1d, varieties, from rolls (Alexander) [N] 26(5)98
— variety, broken O in POSTAL (Wilkinson) [N] 22(1)11
— vertical roll varieties (Vaughan) [N] 60(2)25, (Alexander) [M] 60(3)54
1½d, 1989 UPU Congress Royal Mail envelope with design (Alexander) [N] 60(3)55
— variety (Powell) [N] 24(2)21, (Sutters) [N] 33(4)75
— variety, booklet stamp, No. 5, broken O of POSTAL (West) [N] 26(2)32
— — horiz. crack (Doupé) [N] 21(1)13
2½d, Wattses underprints (Pusterla) [S] 54(2)48
— variety, Plate 1, Control L 29, blue ink marks (Billinghurst) [N] 28(5)101
— — blob on O of UNION (Fairhurst) [N] 29(1)18
Designs of the low‑values (Dagnall) [L] 31(5)81
Varieties (Wolfson) [N] 24(2)21, (Griffin) [S] 28(3)64
½d, sideways roll variety (Alexander) [M] 60(3)54
— variety, CO of CONGRESS joined (Griffin) [S] 29(5)96
— — Plate 2, R20/1, frame break (Billinghurst) [N] 22(2)24, (Sanders) [N] 23(4)64
— — broken serif of 1 (Pearce) [N] 37(3)50
— — frame break (Billinghurst) [N] 24(3)48
— — thickened left frame (Welch) [N] 30(1)18
£1, colour trials (illustration) (SWL90) [N] 28(2)44
— variety, R4/4 (note on plating) (Skinner) [N] 30(1)19