I have a few old silver coins.
You are right about the currency, I was going through my MIL’s stuff the other day and found some nice denomination Mexican coins, I looked them up on the internet and they are worthless because the Mexicans changed the currency.
Currency change has been promoted here before. The intent then was to flush out the underground economy. It did not find much public favor so was dropped, this time nobama could care less about public opinion, at least the public with money.