You know, when my great-grandma died, one of the things she left me was the German-English dictionary she used in school (I took german in school, too, and spent time in Germany). It's pretty old so I didn't open it much so it wouldn't fall apart - anyway, about a year ago I opened it up and found a $2 bill in the pages. I've been using it as a bookmark since then.

I just looked at it again and it's the same one your DS got - 1953 red seal $2 bill.

It's in really good condition, too, probably because it's been pressed in the book for so long - no rips or creases. I'll have to make sure I hold onto it. Thanks for sharing!