Rhodesia 1976 8c Flame Lily Surcharge Double, One Albino Block

1976 8c on 7½c Flame Lily SURCHARGE DOUBLE, ONE ALBINO (SG 526a). Superb UM top right corner block of four, variety evident in the additional impressions EASILY visible on face of stamps. Scarce. Three sheets affected by this variety were discovered in 1986.