It looks a lot like the Admiral dishwasher my mom had.
I believe the cycles were rinse and hold, pots and pans, double wash, double wash with sani, short sani wash, china and crystal. You had to match the letter a, b or c on the dial to the letter on the button.
The lights on hers were,wash/rinse hold, rinse, rinse,wash,rinse,sani delay,rinse and dry. It had two level wash and had a tube running up the back to the second spray arm.