My most expensive purchase so far

Which ones are you seeking? I may be able to help in the future.

 

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I listed the major ones earlier in the thread. I can find the older ones on my own. It's mostly a question of paying the money. It's the few modern ones that are impossible to track down. 1990 10 pesos, 1986 20 pesos, 1999 and 2002 5 centavos, 1992 500 pesos. There's someone in Singapore selling the 1999 5 centavos but I don't want to pay what he's asking.