Bidspirit auction | United States - Modern Errors

United States - Modern Errors and Varieties - 1974, Horses Rounding Turn, 10c yellow and multi, bottom right corner sheet margin plate No.35115-35114 block of four, blue ''Horse Racing'' omitted, red color (US Postage 10 cents) shifted to the top, full OG, NH, VF, C.v. $2,000 as singles, Est. $1,000-$1,200, Scott #1528a