{ "item_title" : "Aerial Observation", "item_author" : [" Harold E. Porter "], "item_description" : "Aerial Observation: The Airplane Observer, The Balloon Observer And The Army Corps Pilot is a comprehensive book written by Harold E. Porter. The book covers the history and development of aerial observation techniques used during World War I. It provides detailed information about the roles and responsibilities of airplane observers, balloon observers, and army corps pilots. The book also includes a detailed description of the equipment and tools used by these professionals. The author has used a simple and easy-to-understand language to explain the complex concepts related to aerial observation. This book is an excellent resource for aviation enthusiasts, history buffs, and anyone interested in learning about the evolution of aerial observation techniques.This scarce antiquarian book is a facsimile reprint of the old original and may contain some imperfections such as library marks and notations. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions, that are true to their original work.", "item_img_path" : "https://covers4.booksamillion.com/covers/bam/1/43/250/242/1432502425_b.jpg", "price_data" : { "retail_price" : "34.95", "online_price" : "34.95", "our_price" : "34.95", "club_price" : "34.95", "savings_pct" : "0", "savings_amt" : "0.00", "club_savings_pct" : "0", "club_savings_amt" : "0.00", "discount_pct" : "10", "store_price" : "" } }

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