British East Africa, 1897, 2½ on Zanzibar 3a Gray & Red, Surcharge Double, One Albino, o.g., fresh with rich bright colors, small thins, Very Fine appearance, ex-Krieger. Scott No. 98 var. SG No. 89 var.  Estimate $500 - 750. ONE OF ONLY THREE EXAMPLES RECORDED OF THE ZANZIBAR 1897 2½ ON 3A WITH SURCHARGE DOUBLED AND ONE ALBINO. $0 (Image)