Following advice it has beendecided to divide the former volume 4 into two seperate volumes, fast bound, to match Volumes 1- 3 in this series.The new volume 4 will include all sheet and booklet stamps showing the iconic 'Machin' head, apart from the non-value indicator stamps (NVI's) and self-adhesives, which will be covered in a new Volume 5, along with regionals, postage dues, greeting stamps and other sections of the previous volume 4. The new volume 4 will list all the Machin definitives issued between 1970 and the end of 2007 (except those mentioned above), with booklet panes and complete booklets in the comprehensive detail which collectors have come to expect over the years.The catalogue has been completely re-set in a more attractive style and most of the illustrations have been replaced by newly scanned, clearer images.