Here a young Dr. Joyce Brothers takes the products of the land, and turns them into canned hams and ketchup. The agricultural economy explained! It all depends on a giant, miles-long conveyor belt.

As you might expect, Grand Union was a food concern - a grocery store chain, to be exact. One of the largest in the 1930s, it has fewer than 30 locations today. Shorpy has a picture from the 50s: enjoy. Don't miss the comments. More on the chain, including pix of its perfect post-war corporate home, here.