Another Peking issue, a sailboat variety, issued in 1923, has a similar defect, and it is believed that not more than 20 of them remain.
民國十一年發行的北京一版帆船郵票，上面加蓋「暫作貳分」的字樣，字體倒蓋，流出不多，據說現存的不會超過二十枚，也因而成為民國五寶之一。