View West of GB and Met
Note the transition joint between the old GB rail and the larger rail leading onto the Met in the lower right corner. A great detail image of this "compromise bar" (from 140lb to 100lb rail) was posted by P. Darmody on Facebook: https://www.facebook.com/photo.php?fbid=10214934601627376&set=pcb.2171320399595956&type=3&theater&ifg=1