Certified Walking Liberty Halves
	Philadelphia - P-Mint Certified Walkers
	Denver - D-Mint Certified Walkers
	San Francisco - S-Mint Certified Walkers
Walking Liberty Books
	1916-1936 Twenty-Coin Walking Liberty Book 20 Random Walkers, NO DOUBLES!!
	1936-1940 Twelve-Coin Walking Liberty Book
	1941-1947 Walker Half Short Set with Book