The LOS for Altgens 6 using 1978 Drommer plat (red line in the middle) and WC final plat July 1964 (red line at bottom).
The difference being what frame#(Z255 and Z249) is depicted by the WC with the limo in position.
The WC did not have access to Drommer back in 1964.
What needs to be altered, to even out the bottom lane marker which lies just ahead of the limo front, with its matching top lane marker?
Once you figure that out, look at Altgens 6 again for a match.
Disregard top red line.