Lot 60767 – 2 1/2d, 4d and 5d, specialised study of the T22, U22

1 1/2d to 1s, specialised study of the Q20, Q21, T22, S21, S22 and R21 control blocks neatly mounted and knowledgeably written up on 63 album pages, with more than 100 items including control singles, pairs, strips of 3 and blocks of 4, 6, 9, 24, 29 and 30, showing a wonderful array of overprint, watermark and other control variations, an excellent basis for study and expansion