贰分至拾伍分一组六枚试盖票, 红色及黑色加盖, 均销镇江双圈中英文无日期戳, 其中两枚是剪片; 少见, 保存完好.Chinkiang Postage Dues Trial Prints of Second Issue Overprint in Red: and in Black 2c. to 15c. part set of six, each cancelled by circular Chinkiang handstamp. Top two values on small pieces. Scarce. Livingston D10D-15D. Photo