Host Mark L. Walberg and appraiser Nicholas Lowry head to San Diego's Allen Airways Flying Museum to look at some of the earliest-known posters of mechanical flight. Highlights include "Captain America" and "Fantastic Four" co-creator Jack Kirby's personal collection of comics from the 1930s to the 1970s; a set of circa 1915 Cartier cuff links, buttons and studs; and an original Hortus Eystettensis, the groundbreaking collection of botanical illustrations published in 1613, valued at $250,000 to $350,000.