I can't remember when or where I got these, but my grandfather made many trips to Mexico while I was growing up in L.A. so they may have come from him. After just looking up my China currency and finding 25,000 yuan bill only worth a couple of dollars, I didn't have high hopes when I started looking into these. According to current rate of exchange, 50 pesos = $2.59. Total $5.18 Current rate of exchange, 2000 pesos = $103.44. Total $310.32 Current rate of exchange 50,000 pesos = $2,586.00 US Total of all currency, $2,901.49 US Please tell me I'm right. Now, where do I exchange them for US currency. No B of A in Montana.