Vintage Advertising I'm Looking For A Vintage, Flipdown, Advertising Clock Like They Use In Old Restaurants And Truckstops.?

I'm looking for a vintage, flipdown, advertising clock like they use in old restaurants and truckstops.? - vintage advertising

I want this for my basement, which is decorated in a vintage style. This is the way in which a clock and advertisements have wrinkles. Where can I buy?