It seemed too good to be true — a mysterious post from a Facebook user nearly 4,000 miles away claiming to have unearthed a link to the past. Debbie Wahl of Shoemakersville was intrigued when she first spotted the post by amateur historian and metal detecting enthusiast Chris Valer over a year ago. The Frenchman said he had discovered a World War II-era military identification bracelet and was trying to return it to its rightful owner. Valer fou…