Would you like to own a unique piece of D-Day History? Prior to their arrival in the English Channel on June 6, 1944, the Navy conducted tests in a mock LST facility at Fort Knox, Kentucky, to develop a ventilation system that would allow vehicles such as tanks to continually run safely while in an actual LST for hasty debarkation on beaches.That facility still stands today as a testament to American ingenuity and success in the face of tyranny. These pens have been made from materials from this one of a kind building.