20220509 15095900 1.0 TRUE 150000000 5000 ItemDescription greyscale non-ortho-rectified vertical aerial photography covering Milwaukee County Wisconsin; captured March-April 1985; resolution of approx. 11 inches per pixel; source 9 inch x 9 inch 1:20,000 prints were scanned at 1,800 pixels per inch and georeferenced via third-order polynomial transformation using ortho-rectified imagery as reference <div style='text-align:Left;'><div><div><p><span>greyscale non-ortho-rectifed vertical aerial photography covering Milwaukee County Wisconsin; captured March-April 1985; resolution of approx. 11 inches per pixel; source 9 inch x 9 inch 1:20,000 prints were scanned at 1,800 pixels per inch and georeferenced via third-order polynomial transformation using ortho-rectifed imagery as reference</span></p></div></div></div> Milwaukee County GIS & Land Information; Southeastern WI Regional Planning Commission (SEWRPC) aerial_1985 1985 aerial Milwaukee County Wisconsin USA imagery historical <div style='text-align:Left;'><div><p><span>this historical imagery does not reflect current ground conditions and must not be used as a substitute for site investigation - additionally, it is not ortho-rectified and lacks the spatial accuracy inherent in ortho-rectified imagery</span></p></div></div> 20220509