The basic textbook employed by the Defense Institute of Security Cooperation Studies (DISCS - formerly DISAM) for instruction of all classes covering the full range of security cooperation activities. The text is revised annually and commonly referred to as the Green Book as it is bound in a green cover.
7938 Passenger Train is a City Trains set released in June 2010. It was sold in the US as a Special Edition set at the LEGO Store and Toys R Us.
Fast forward to today. The stock investors would have done pretty well, with a 15% gain, including dividends paid. But the Lego investor would be able to sell the Lego Emerald Night trains for $203 each, for a total 103% profit. In other words, the Lego train would have outperformed the stock market by 587%. And that's not an anomaly. Lego bricks, have become lucrative investments due to a confluence of bullish factors.