Black Americana Mammy and Pappy Salt and Pepper Shakers

The interesting thing about this set is they are stamped Los Angeles International airport. Which is crazy to think about. Were they used in a restaurant? It’s not really stamped well enough to be sold in a gift shop? When were these used at LAX? Conversation starter for sure. Bear with me this is my first posh listing. I’m usually an eBay seller but they don’t do Black Americana. I’m not sure how this site works.