1950. Waukesha County. This data set consists of digital aerial photo images obtained from 1"=1667' scale black and-white negatives aquired in the spring of 1950. The pix... Waukesha County Land Information Office.
1959. Prior to the year 2000, DVRPC aerial imagery consisted of mylar aerial photo enlargements or atlas sheets. These atlas sheets were produced from 9x... Delaware Valley Regional Planning Commission.