cover 1881 (c.) envelope addressed in Arabic, bearing 1a. tied by "B" in bars (type 5) and showing "MASKAT" c.d.s. (type 6) for 25 Feb. on reverse; the envelope slightly trimmed at right, otherwise fine. Photo

細節
cover 1881 (c.) envelope addressed in Arabic, bearing 1a. tied by "B" in bars (type 5) and showing "MASKAT" c.d.s. (type 6) for 25 Feb. on reverse; the envelope slightly trimmed at right, otherwise fine. Photo