This is the Extra Large Oversize button usually found on coke Machines, at the Top.
Often this controlled selection numbers 1 and 2 in alternating fashion. There were two similar very large or oversize buttons. This one is 5.25 wide and 5.5" tall on the front, but the back is 6 x 5.5 . So this is the button that looks Taller than it is wide. If your button is wider than it is tall, check out the (DLAA1197) Replacement Flavor Strips or Cards are no longer available in this large size. The best we have come up with is to put a blank piece of paper or card stock in there the size of the button and then use Flavor Strips (DLAA1224 or DLAA6491 Depending on the flavor you want.)