Caterpillar D7 7M series tractor, operated by MSGT Knowles Freeman from Pensacola, FL, 829th Engineer Construction Company, while building an airport near Eye, England, 2 March 1943.  Although not on this unit, the D7 7M tractors were typically fitted with a  LeTourneau WCK-7 angledozer blade operated by the rear mounted power control unit
{"Image Orientation": "Horizontal (normal)", "Image XResolution": "72", "Image YResolution": "72", "Image ResolutionUnit": "Pixels/Inch", "Image Software": "Adobe Photoshop CS2 Windows", "Image DateTime": "2008:02:02 15:03:39", "Image ExifOffset": "164", "Thumbnail Compression": "JPEG (old-style)", "Thumbnail XResolution": "72", "Thumbnail YResolution": "72", "Thumbnail ResolutionUnit": "Pixels/Inch", "Thumbnail JPEGInterchangeFormat": "302", "Thumbnail JPEGInterchangeFormatLength": "9310", "EXIF ColorSpace": "Uncalibrated", "EXIF ExifImageWidth": "504", "EXIF ExifImageLength": "472"}