EXECUTIVE SUMMERY MANUAL (?): First page of a leather bound 5-1/2" x 8" manual (like the Salesman’s Fact Book). It appears to be a 1929 internal Buick fact book that was prepared for Buick executives or maybe Dealer owners to further familiarize them with Buick's 1929 full product line. It contains information way beyond that which is contained in the 1929 salesman’s fact book. It is printed in black & white, contains many detailed engineering illustrations, charts, studies and graphs that are not present in any other 1929 Buick literature or documents..