Reshared post from +Dale Jackson
What you're looking at here are 18,000 U.S. troops standing in a formation that resembles the Statue of Liberty. The photo was used as an advertisement for war bonds during World War I, because nothing says "patriotism" like a human Magic Eye poster.
The layout at the reported 400 yards was nearly 4 times the length of the actual Statue of Liberty and the viewer will note that the correct perspective is maintained. The number of men in the various parts include: Flame of Torch – 12,000 men, Torch – 2,800, Right Arm – 1,200 men, Body, Head and balance of figure – 2,000 men.