Those numbers are really interesting. Which exchange? This was just a few months after the 10,000 bitcoin pizza.
Indeed, about 7 weeks after laszlo's famous pizza trade with jercos.
I was using bitcoinmarket.com at the time. There were other options for buying/selling such as OTC, NewLibertyReserve, and the forum, but bitcoinmarket.com was the closest thing to an exchange.
I have more old trade data if your interested, going back to about April, 2010. Volume is relatively low but one can't miss the wild yet largely forgotten July, 2010 rally.