1894年10月4日由镇江工部秘书长格瑞格森发佈的邮政通告, 说明邮政明信片一分自即日起供售, 售价每一百枚售洋银, 在通告下端另有镇江书信馆辛格尔馆长及九名职员签名作实; 通告有发黄及摺痕, 这是有关镇江书信馆发行邮资明信片的唯一邮政文件, 可见其重要及珍罕性.Chinkiang Postal Stationery Post Office Notice 1894 (4 Oct.) the original Post Office Notice written in ink and headed "Postal Service " with "Post-Cards (1 cent) are now available. Price $1.50 per 100. Post Office Chinkiang" . Initialled by the postmaster J. Singer and initialled or signed by nine postal staff; horizontal fold at foot. An important item of postal history. Photo
