Bidspirit auction | United States
United States - 1974, Minerals, 10k multicolored, se-tenant block of four with light blue and yellow (litho) colors omitted, full OG, NH, F/VF, C.v. $900, Sc. #1541b
United States - 1974, Minerals, 10k multicolored, se-tenant block of four with light blue and yellow (litho) colors omitted, full OG, NH, F/VF, C.v. $900, Sc. #1541b