My S'Kid (stepson) has an inquiring mind. He's always looking at things, trying to figure them out. His specimen of the day is this framed coin set I found for $1. I included it in this post and this one, too. I just thought someone framed them because they were cute.
His eyes are apparently better than mine (or Husband's). They are 1968 Summer Olympic-edition 25pesos from Mexico City. Just one brief search on the internet tells me they have an approximate value of $13.50 a piece. Of course, mine aren't in mint condition....nor are they for sale.