1000 usd a peso mexicano
The old mexican pesos, (100000, 50000, 20000, 10000 notes, and 1000, 5000 coins) are no longer in use, since 1994 the mexican peso were "divided" into, and 1000 pesos were then 1 peso. About 8 years ago, all the old coins and bills had to be changed for the new ones, and the remaining ones doesn't worth anything anymore.