This is a t-shirt given to attendees at Apple's developer event, WWDC 2006. It says "Vini Vidi Codi." on the front. It's unopened, so I can't confirm what's printed on the back, but I looked it up online and it's probably "WWDC06." Condition: Unused, unopened, but please understand that it has been stored in a closet for many years. Size: US M Instant purchase is welcome!