» Tue May 10, 2011 9:26 pm
"The Collector's Edition chip has morse code numbers on each of its sides. The 200 side reads "112281," while the Lucky 38 side reads "232077." Also on the 200 side, there is a symbol of a roulette ball in a 7 slot, while the Lucky 38 side shows a roulette ball in a 10 slot. When presented in MM/DD/YYYY format, the date ascertained from the Lucky 38 side is in fact 10/23/2077, the day of The Great War and the day the chip was to be delivered to Mr. House. The significance of the date obtained from the 200 side, 07/11/2281, is the date that Fallout: New Vegas began. "
From the wiki
The Numbers on the outside are just a replica of a roulette wheel.