Old Bay Seasoning dates back to 1939, Baltimore, Maryland. The spice was a "secret" mixture concocted by German immigrant Gustav Brunn. Today Old Bay seasoning is used in many crab recipes from a basic crab boil to specialty crab cakes.
If you don't have Old Bay Seasoning you can make your own substitute:
The product is available at most well-stocked grocery stores and markets such as Walmart. You can also purchase it online on Amazon.com: OLD BAY Seasoning.