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An 18th century flintlock has bidders arghhhguing over the price at auction. The four-barrel gun was so complex and expensive to produce that only the wealthy could afford one making these guns a coveted booty for pirates. The Lords of War inspect a rare piece of WWII memorabilia that couriers used behind enemy lines. If it's authentic, it could be valued at $18,000. And one seller, disappointed to learn his Japanese katana sword was not actually Made in Japan, is in for a big surprise.