United States stamped envelopes, illustrated and identified;
a list of the stamped envelopes, wrappers, and letter-sheets of the United States, arranged according to design and denomination and giving the distinguishing feature of each, thus readily enabling the collector to determine either old or new catalogue number of every major variety listed in either the Standard Postage Stamp Catalogue or the United States Stamp Catalogue and provided for in albums printed by Scott Publications, Inc.