Li Si
The "Shiji" biography of Qin dynasty Grand chancellor Li Si (c. 280-208 BCE) collectively mentions "Sui He zhi bao" (隨和之寶, "treasures of [Marquis] Sui and [Mr.] He") in a letter advising Emperor Qin Shi Huang not to follow Zheng Guo's advice to expel all foreigners from Qin.