A group of 3 Nepalese merchant covers privated carried by Yizhan to Lhasa during Qing Dynasty, showing the name of the addressee and
A group of 3 Nepalese merchant covers privated carried by Yizhan to Lhasa during Qing Dynasty, showing the name of the addressee and Postage Paid annotation by ink-brush on reverse. Carriage of private mails by Yizhan was prohibited but the rule was ignored by the couriers for the sake of profit
