Bidspirit auction | United States - Modern Errors

United States - Modern Errors and Varieties - 1980, Architecture, 15c x4 black and red, top right corner se-tenant block of four, upper stamps (No.1839-38) have missing red color due to strong perforation shift, full OG, NH, VF and scarce, C.v. $400, Est. $300-$350 , Scott #1841b