How many bricks were used?
1,250,000 were ordered from a Baltimore firm – the exact number used is unknown, but this figure tallies closely with the engineering estimates. The brick was manufactured at a kiln on the James River in Virginia, for a Baltimore contractor. The bricks are not curved. Some extras went into the facade and walls of the 1871 Principal Keeper’s Quarters (however, there are two kinds of brick in inside quarter’s walls. It is unknown if both are original).
