Strategy Guide series. The only book available on Walking Liberty Halves! Covers Business Strikes from 1916-1947 and Proof Issues from 1936-1942. Strike, luster, rarity analysis, pricing and prices realized. Jeff Ambio. ISBN: 1933990171. Pub Date: 5/16/2008. Edition: 1. Binding: Paperback. Size: 7x10. Pages: 200. Case: 50 .