Sounds like brisket flats. Can't explain the '08 date!
But, since you didn't post pics I/we can't even really hazard a guess at the cut!!
Check with "the man". If they are from '08 I don't think I'd want to be responsible. YMMV!
Southern Brethren BBQ Competition Team
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KingFisher Gator Rotisserie cooker, WSM, Stainless 5 burner with IR gas grill, Turkey Fryer, Weber JD Commemorative grill, slightly used Bandera chamber for future use as a cold smoker, Masterbuilt 40" insulated ELECTRIC smoker