1894年8月28日海南寄本地封, 盖灰色海南陆差邮政局双框方形戳, 内手填日期, 戳的部份被棕黑色圆形海南三亚截所覆盖着, 旁有带"C"字海口戳, 封有些少摺痕, 应是灰色双框方形戳最晚期使用例. 源流: 1990年11月Christopher D Almade.Hainan IslandHainan Samah Land Post1894 (28 Aug.) used locally and bearing a fine strike square Land Post handstamp struck in grey with manuscript date insertion partly overstruck by the circular Hainan Samah handstamp in brownish black and with thimble Hoihow code C c.d.s. alongside; vertical fold and slightly reduced at right. A rare and desirable cover and thought to be the latest use of the grey ink. Photo
