Zhao Na Xin Bao "招納信寶", Reverse: Shi "使", 27mm, 1mm, Copper. The top character on the reverse means envoy and the bottom one a signature. Also called “Trust Token for Recruit” , minted by General Liu Guangshi of the Southern Song army in 1131, Southern Song Dynasty (1127-1279). Rare! 招納信寶楷書背穿上“使”、下爲反“上”。背文穿上爲“使”字，可釋爲“特使”或投誠時使用之意，穿下爲花押，系防僞標誌。.該幣爲南宋將領，禦前巡衛軍都統兼江東宣撫使劉光世，於宋高宗紹興元年至紹興三年（1131—1133）鑄于江州（今江西九江）。南宋初劉光世爲爲招攬降兵，鑄招納信寶作爲信物分發給願降的官兵，存世有金、銀、銅三種，均極罕見。招納信寶是一種具有傳奇色彩的軍用錢幣。