For National Donut Day (or National Doughnut Day if you please), here's a pair of lovely vintage donut ads. Up first is a lovely Mayflower Downyflake specimen from 1939, tying their donuts to that year's World's Fair in New York. And the second treat -- because who can eat just one? -- is this Mister Donut print ad from 1966. I wonder if that coupon is still any good?