I know nothing about the Eckles Oil Division of the Consumers Petroleum Co. of Plymouth but they had a "peace of mind" wise owl fuel budget plan and this was a brochure to procure said service. Since there is a 5 digit zip code it's not older than the early 1960s. Here's the flat scan of the foldout. No clue where I picked this up at but I would assume it was in Plymouth in some desk drawer or in a book.