Bidspirit auction | United States
United States - 1991, Kestrel, imperforated proof of 1c multicolored, left sheet margin horizontal gutter block of four, full OG, NH, VF, C.v. $400 ++ , Sc. #2476 P
United States - 1991, Kestrel, imperforated proof of 1c multicolored, left sheet margin horizontal gutter block of four, full OG, NH, VF, C.v. $400 ++ , Sc. #2476 P