on 2 annas, initialled "A.B.", S.G. 23, used in combination with 1890-95 4a. yellow-brown and tied by "MOMBASA/A/MR 30/91 single circle datestamps; very rare; 4½ annas rate. Photo" /> cover 1891 (30 Mar.), cover from Mombasa to Peckham and redirected to Asylum Road, bearing<I> "½ Anna"</I> on 2 annas, initialled<I> "A.B."</I>, S.G. 23, used in combination with 1890-95 4a. yellow-brown and tied by "MOMBASA/A/MR 30/91 single circle datestamps; very rare; 4½ annas rate. Photo | Christie's