Shortwave UV light reveals block of 24 U.S. 1967 20¢ Marshall stamps with tagging-omitted error
Charles Snee at Linn’s Stamp News reports a new tagging-omitted error on the United States 1967 20¢ black olive George C. Marshall stamp with dull gum (Scott 1289b) was recently discovered in a left corner margin block of 24. This block of 24 United States 1967 20¢ black olive George C. Marshall stamps is shown under normal lighting conditions and under shortwave ultraviolet light, which allows the tagging to be seen. Two of the stamps, the first stamp in the fourth row and the first stamp in the sixth row, are newly discovered tagging-omitted errors. Henry Gitner of Middletown,…
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