This product is a fully restored Griswold #6 cast iron skillet with a large logo and LBL marking. It is compatible with induction, electric, and gas stoves and has a round shape. The skillet is made of cast iron and has a non-stick surface coating. It is an antique and vintage item, manufactured in the United States. Fully & completely restored #6 Griswold large block logo LBL 699 J. Soaked in a lye bath then placed in an electrolysis tank for 24 hours. Seasoned 3x with grapeseed oil and baked in an oven at 475 each time to establish polymerization. No cracks or chips and ready to put back into service.