Inside the blockhouse's General Purpose Room are a number of displays,
including some blockhouse windows.
The accompanying sign reads
These windows are composed of 3 segments, each with 15 layers of
one-quarter-inch glass laminated together. Each segment forms a block that is
4 feet long, 2 feet wide, and 4 inches thick. The space between each segment
was pressurized with an inert gas to control moisture. The total thickness of
each window is 12 inches, which gave crews working in the blockhouse protection
from any accidental explosions on the nearby launch pad. The window on top
shows the heavy-duty exterior hardware necessary to install the windows into
the blockhouse walls; the bottom window shows the interior finish.