This Stanley Gibbons comprehensive catalogue covers Great Britain, Commonwealth and Empire countries 1840-1970. The listings include variations in watermark, perforation, paper and printing methods, major shades, watermark varieties, important plate flaws, errors, government telegraph stamps and booklets (all listed and priced). Guidance is given throughout the catalogue on subjects such as unusual usages, overprint settings, forgeries and much, much more. More such notes have been added to the latest edition. KEY SELLING FEATURES: •The authoritative reference source for GB and Commonwealth information – all stamps from 1840-1970 listed and priced. •To help readers avoid buying forgeries or fakes, or stamps with forged postmarks, there is helpful information on identification. •Strengthened, casebound binding for extra durability. •Unique listing by SG number. •Full colour illustrations. •Invaluable six-page article on stamp condition. •Helpful guide to valuing stamps on commercial cover up to 1945. •Prices have been carefully and extensively revised throughout the catalogue and there are increases, some of them quite significant, throughout all periods and territories. There are some substantial rises in Australian States and further increases in India and States. Most areas and periods up to the 1960s see selected increases and a number of previously unpriced items have now been given a value. Errors and many plate flaws and watermark varieties are also generally marked up. •Whether you are an active buyer of Commonwealth stamps, a dealer or an investor, it is vital to be right up to date with this very active market – and there is no more up-to-date reference than the 2019 ‘Part 1’. IMPORTANT ADDITIONS TO THE 2019 EDITION: •The comprehensive priced listing of Indian stamps used in the two main offices in Aden, added last year, has now been supplemented by a summarised listing of adhesives known used in the Aden sub-offices. •A new and fully-priced listing of Indian stamps used in Kuwait. •Several new plate flaws and watermark varieties have been added to Great Britain and many Commonwealth territories. •Further prices have been given for high face-value stamps with fiscal cancellations and a start has been made (in India) in pricing telegraphically used stamps.