Most people don't realize this, but California is an agrarian powerhouse. If you live in the States and have canned tomatoes in your pantry, there's a good chance they're from Sacramento. If you have a jar of applesauce in the refrigerator, it probably came from Sebastopol. California is the only US state that commercially grows almonds, and one of the few that produces rice and olive oil.
In the early to mid 20th century, more and more California produce was shipped to other states, with growers realizing that labeling their crates was an easy way to advertise (those of you who've read Steinbeck may recall Adam Trask's failed attempt to ship Salinas Valley lettuce back East). The labels gradually became fancier and more colorful (the California Heritage Museum in Santa Monica had an exhibit on fruit crate labels in 2005). I used a real vintage "Sebastopol Apples" crate as the model for these crates. They'll be scattered in and around the house, serving various practical storage purposes.