The set is made of porcelain enamel on steel and features a checkered pattern and vegetable designs. 
Helpful information about the set:
Year of manufacture: 1997. 
Brand: Gibson. 
Material: Porcelain enamel on steel. 
Design: Features a checkered pattern and vegetable illustrations. 
Components: Includes a saucepan pot with a lid and two mugs. 
Safety: Enameled cookware is generally considered safe for cooking as the enamel coating is made from glass and does not contain harmful chemicals like PFOA or PTFE. 
Collectible item: This set is considered a collectible item, particularly for those interested in advertising and food & beverage memorabilia. 
Display: When first exhibited in 1962, Andy Warhol's "Campbell's Soup Cans" were displayed on shelves, mimicking the arrangement of products in a grocery store. This historical context adds to the collectibility and aesthetic appeal of the set.