This is the 15 oz. size ceramic coffee mug. Just whistle was a soda that was popular years ago with these great graphics.
Vintage Bunny Bread Sign Coffee Mug 11 oz. -
Farmhouse Welcome Coffee Mug - Cow in Cotton Wreathj
Iola Theatre Coffee Mug Vintage Iola, Kansas
Thirsty Just Whistle coffee mug soda pop vintage