The last Block 1 LEM or Lunar Excursion Module. Made for Apollo 15 but abandoned as the program was sped up and the Lunar Rover had to go on Apollo 15. The Block 1 model however couldn't fit the Rover so Apollo 15 got the first Block 2 model. This is not a mock up. This is the original last Block 1 model therefore is the one and only real LEM left in the world.
