See also Guides for:
Stamp perforation varieties have become a popular area to collect, however, copies of the 2006 book Stamp Perforation: The Somerset House Years — 1848 to 1880 are increasingly difficult to find.
The Royal Philatelic Society London, along with the authors, are delighted to provide a large section of this book as a PDF download, free to collectors, together with some additional downloads. The intention is to generate feedback from as many collectors as possible so that the authors can provide a comprehensive update in due course.
Click here to view the details and download.