1941 Ford We Learned a Lot About You Sales Mailer Folder. We've learned a lot about you. You've changed a lot since you bought your first car! 28 million cars built by Ford over the last 38 years and a lot of things have changed largely due to customer wants. Promotes changes and tells you to compare. Compare the ride. Compare the size. Compare the performance. Get the facts and you'll get a Ford. Back promotes the best time to trade. Condition: Some soiling. Hole where folds meet. See pics.