"In early January, Linn’s Stamp News learned of the discovery of a tagging-omitted error on the United States 1981 nondenominated (18¢) B-rate Eagle booklet stamp (Scott 1819).
John Musser of Michigan, an avid collector of untagged stamps for the past 22 years, contacted Linn’s via email to report that he found the new error on an Artmaster cacheted first-day cover for the stamp franked with a ..."
