Lot 60797 – 2 1/2d, 3d, 4d, 5d, 9d 10d, specialised study of the

1/2d, 1d, 1 1/2d, 2d, 1s, specialised study of the U22 and T22 control blocks neatly mounted and knowledgeably written up on 23 album pages, with 39 items including control singles, strips of 3 and blocks of 4, 6 and 12, showing a wonderful array of overprint, watermark and other control variations, an excellent basis for study and expansion