Category : History(234)

Kelsh Projection Stereoplotter (1960). This was an automatic digital data input system used in conjunction with the photogrammetric plotter. The stereoplotter required two aerial photographs that have considerable overlap (60%). The photos are put onto transparent media and projected with a light source. Each image will be projected with overlap on the other. The operator,

Black and white photograph showing passengers gathering around baggage claim area at Seattle-Tacoma Airport in 1949. The image captures the early days of commercial aviation with people in formal attire waiting in what appears to be a modernist terminal building with large windows.