Bidspirit auction | United States - Modern Errors

United States - Modern Errors and Varieties - 1982, Christmas issue, Madonna and Child, 20c multicolored, top sheet margin USPS imprint block of four, bearing only blind horizontal perforation and containing two pairs imperforate vertically, full OG, NH, VF and rare, only a few reported, PF certificate, C.v. $1,800 as two pairs, Est. $1,000-$1,200, Scott #2026b