
Although the telegraph messages were filed in a bag for disposal, the stock exchange kept the forms and they were later disposed of as waste paper. Some of the stamps were obtained by stamp collectors and 25 years later, in 1898, a philatelist, Charles Nissen, noticed differences between the forged stamps and the real stamps.
First, the stamps used letters that indicated the position of the stamps on the sheets of stamps, but some of the letters were incorrect. These letters were also slightly larger than on the genuine stamps and the corners of the stamps were blunter. Second, the stamps were not watermarked, while genuine stamps did have a watermark. Third, the forged stamps were lithographed while the real stamps were typographed, producing a lower quality of stamp.
By the time the forgeries were discovered in 1898, the clerk who had committed the forgery had disappeared, and to this day, no one knows who committed this perfect crime, perfect because no one even knows who committed the crime and the criminal kept all the proceeds. One shilling was equivalent to twenty-five cents or about $6 in today’s money, and over a year, the forgeries could have added up significantly for the perpetrato
rs. Perhaps after 1873, the fraudster simply retired.
Stock exchange forgery stamps are available to collectors, but sell for more than the originals since they are scarcer than the originals. You can buy one on Ebay for about $800 if you want a piece of stock market history.