Bidspirit auction | United States - Modern Errors

United States - Modern Errors and Varieties - 1987, Pan American Games, (22c) multicolored, silver color omitted, bottom right corner sheet margin block of four, usual centering to top right, full OG, NH, according to US Errors Cat. only 30 copies recorded, C.v. $1,400 as singles, Est. $600-$700, Scott #2247a