Stockbook collection of back of the book areas, two large volumes and three smaller, including an interesting range of training school overprints and hand-cancelled examples, incl. five full sheets (Machin 1p, 2p, 50p and 2nd class, plus 1p due), 'PHG Training Centre' registration labels in strips, other sections on the 1970 decimal currency training labels with the five issued values in blocks of ten, 1974 octagonal self-adhesives, large postage paid labels, etc. In the smaller books is much postmark interest, as well as a good range of postage dues, virtually complete basic types incl. first series with both shades of 1/- mint, 1924-31 set mint and used, 1937-38 1/- and 2/6d MNH, 1954-55 set MNH and used (SG.D40/D45, cat. £380), etc.