While we're at it, here's another shot I took of BNSF's "East Field" in Topeka back with some noteworthy ex-Santa Fe units. Here, we've got two SD45-2B's and a pair of SD45-2's. From front to rear, they are the BNSF (I'm assuming GN, though the first two aren't marked as such) 6522, 6523, 6484 and 6516. The first three units here had originally been some of Santa Fe's Bicentennial 45-2's; the 6522 being built as the ATSF #5703, the 6523 was the ATSF #5701 and the 6484 was originally the ATSF #5704. Photo taken with permission.