Book excerpt: Excerpt from A Comprehensive Catalogue of the Postage Stamps of the United States of America No reference is made as to postmarks, though in some of the earlier issues Carrier, Steamboat and Paid Cancellations are decidedly rare, as also those shewing year dates. Again certain stamps on entire envelopes are of greater value than if detached, a notable example being the 900. Of 1869 which is priced at 3 in the catalogues, but for which the writer (who has yet to see one) has heard of an offer of 20 to purchase a fine copy on entire! The colour of the obliterating ink may also have a marked effect on the value, green for instance being very scarce in the 1847 Issue. No Imperforate or part perforated varieties of stamps that are normally perforated are treated as varieties, except where such are beyond suspicion owing to their being found in pairs or blocks; and double or misplaced perforations are not listed, though they are frequently met with and probably exist in every issue. Of the misplaced transfers only the most prominent varieties are described. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.