Stamp Catalogs : Page 125
Stamp catalogs are divided into two principal groups:1) General Catalogs, which list, illustrate, describe andgive evaluations for all postage stamps of the world, and
2) Specialized Catalogs, which give greatly expanded list-ing of the stamps of a single country or a particular groupof stamps.
In the United States there are presently two generalcatalogs of the world's postage stamps: "Minkus NewWorld-Wide Postage Stamp Catalog," published by Min-kus Publications, Inc., and Scott's "Standard PostageStamp Catalogue," published by Scott Publications, Inc.Both firms are located in New York City. Though bothare general catalogs, "Minkus New World Wide Cata-log" is the more complete, more fully illustrated andinformative.