Originally Posted by RedSun
It's Wyeast American Wheat I think, but I'll check. I think the curiosity is more academic than functional, but still fun to know
Check the best by date and the manufacture date and no matter what it says make a starter.
After it leaves Wyeast the viability starts to go down, use this: http://www.mrmalty.com/calc/calc.html
it lets you put in the manufacture date to adjust the size of your starter.
BTW, I am 99% sure it will be fine.