Plot: Part 2 of 3 in Tulsa features a 1960 first edition of "To Kill a Mockingbird" inscribed by author Harper Lee; a collection of bronzes that may or may not be Remingtons and Russells; and a 1924 Gibson F-5 "Lloyd Loar" mandolin valued at $175,000. Also: a visit to the Woolaroc Museum and Wildlife Preserve highlights vintage petroliana collectibles