What's in U.S. Treasury Secretary Timothy Geithner's wallet? Not much.

While testifying in front of a House Appropriations Subcommittee on Capitol Hill Thursday Geithner was shown a $50 Billion Zimbabwean bank note (rendered worthless by Zimbabwe's hyperinflation) by U.S. Representative John Culberson (R- TX) and asked if he had ever seen one himself. Geithner immediately pulled a piece of Zimbabwean currency out of his own pocket and showed it off to the committee. At the next break in the hearing I approached Geithner and asked how he happened to have a piece of foreign currency in his pocket. His response was "I often have some foreign currency in my wallet. Want to see?" He pulled a very thin and mostly empty wallet from his pocket.

Amongst many empty slots in the thin weathered leather wallet there could be seen three credit or debit cards with Visa and Mastercard logos (all inserted into the wallet upside down so that the card issuers could not be seen) and an old and yellowed looking identification card of indeterminate origin.

From inside the wallet Geithner extracted a small pile of receipts and paper including a New York City MTA farecard, pointing out that there were European Euros tucked amongst the paper.

Notably not seen in the U.S. Treasury Secretary's wallet? Any U.S. dollars.

- Photo Credits:  Jim Bourg/Reuters  (U.S. Treasury Secretary Timothy Geithner puts a piece of foreign currency back after showing off the contents of his wallet to a photographer during a break in his congressional testimony in Washington, May 21, 2009.)