Photo 2
The Reverse Projection photo made Nov. 1991
( long after the original skid mark faded away )
Photogrametry Photo 2

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Photo 1
The original photo of the unmeasured skid mark
taken May 1990
Photogrametry Photo 1
Photo 3
 The super imposed Reverse Projection photo
and original skid mark photo
( demonstrating the exact measurement of 30 feet )
Photogrametry Photo 3
Reverse Projection Photogrametry

© Atlanta Legal Photo Services, Inc.

Another Example