The prominent use of rain heads and down spouts in the composition is an interesting pointer to Plottel s later work.
2.
A : Before there were such things as rain gutters and down spouts, roofs were designed with a wide overhanging edge, the eaves, which carried rainwater away from the building's foundation to prevent it from damage.
3.
An 1848 military report described the building as " " An engine and guard-house 35 1 / 2 x 24 feet, one story brick, covered with slate, and having copper gutters and down spouts & " " The building achieved notoriety during John Brown's Raid on the Harpers Ferry Armory in 1859.