I've done a cursory seasoning on this pan in the course of cleaning it up a bit. You might want to do some more. The item "Vintage Griswold #6 606 Cast Iron Griddle Large Logo USA no warping" is in sale since Sunday, December 17, 2017. This item is in the category "Collectibles\Kitchen & Home\Kitchenware\Cookware\Cast Iron".
The seller is "oldantiochian" and is located in West Barnstable, Massachusetts. This item can be shipped to United States.