Back in print after 4 years, the Scott Catalogue of Errors of on U.S. Stamps features the latest listings and values for hundreds of imperforate, color-omitted and invert errors. The 15th
edition, contains more than 100 new listings, including some older items documented for the first time, such as Scott 407, the imperforate irregular block of the 7-cent Washington-Franklin
issue of 1912, salvaged from printer's waste. Listings are identified by Scott numbers, and are classified according to the type of major error. Values listed in the catalogue come from a
variety of sources, including auction realizations, dealers' retail price lists and prices advertised in philatelic periodicals. The catalogue also includes hundreds of full-color stamp
illustrations. Other Features include: 繚 Known Quantities 繚 Printer's Waste 繚 Cautions for Dangerous Fakes 繚 Extensive Footnotes on Format Variations, Conditions and Defects 繚 Special Section
on Freaks and Oddities, Including Price Guidelines
