In Mumbai, a guy from Amsterdam (who is also from New Zealand) tells me about an American television show. Despite the cultural collisions of that, he's got a good story. Apparently the host - Jimmy Kimmel or maybe Conan O'Brien, he couldn't remember - went into the street and asked passersby whose face was on the dollar bill. Rather than admit they didn't know (it's George Washington) people would just throw out any name.
We laughed, and I said there'd be no such problem in my country. It would be an unusual person or a recent migrant who didn't know Sir Edmund Hillary is on our lowest piece of folding, the $5 note.
Indian rupee notes have Mahatma Gandhi on them, the unifying figure in what poet Rabindranath Tagore called "the idea of India", a nation where pluralism comes in multiples.
How plural is India? Their notes have denominations written in 17 languages, "each encoding a distinct, sophisticated, ancient and proud literary culture", says historian Ramachandra Guha. "Since rupee notes are an artefact of everyday life, we do not see or sense their significance."