Black and white aerial photo

http://www.google.com.pe/imgres?imgurl=http://www.jaha.org/edu/flood/rebuild/img/panoramas/550w/JT_aerial-1950s-550.jpg&imgrefurl=http://www.jaha.org/edu/flood/rebuild/img/panoramas/index.html&usg=__6C_nX6ySXwk_YktKx5xAzptsK-M=&h=449&w=550&sz=129&hl=es&start=4&zoom=1&um=1&itbs=1&tbnid=--7gtI6wmRwN9M:&tbnh=109&tbnw=133&prev=/images%3Fq%3DBlack%2B%2526%2Bwhite%2Baerial%2Bphoto%26um%3D1%26hl%3Des%26sa%3DN%26tbs%3Disch:1

This is a black and white aerial photo of the downtown in the city of Johnstown, Pennsylvania. It is part of a set of photos that shows how they rebuilt this city.