Can anyone explain to me what an uncorrected aerial photo survey is? I am assuming no ground control.
An uncorrected aerial photo is usually just that..a photo. No "ortho rectification" or correction for parallax and flight location has been performed. Scaled distances tend to be predictable directly underneath the focal route of the camera and distorted near the edges. This can be misleading because the center of the plate is not necessarily the center of the flight path. Shadows near the edge of the plate can help, but the photos are usually not any good for any precise analysis or calculations.
Note that if you have enough features in the historical photo that also appear in modern georeferenced aerial orthophotos, you can rectify (and georeference) the historical photo using software like Global Mapper. It works well.
That looks to be a hand cut, pasted up mosaic of (probably) non-rectified photography. Not at all a "survey", but just pieced together photography.
Thanks for the information.
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