Back in the good old days, before Image Search on the World Wide Web, getting reference material was a major pain. After getting a script I would spend a day in the public library searching for the reference I needed, often without success. In this case, the writer, Mike Barr, set the next four page sequence in the New York City Port Authority. I was annoyed; I’d just BEEN to Manhattan. If I’d had some advanced warning I could have visited and shot my own photos. Luckily, I knew about the Warner Studio reference library (I had just finished a two year stint on the Batman Animated TV series after all) and hit up my pal and fellow Bat-Artist, Dan Riba (who was still working at WB), to access said library for my purposes. Dan could only find reference on the exterior; I had to fake the interior scenes.
As for the bus, there was a bus yard within a mile of my house. I asked permission of the security guard who graciously let me snap all the photos I needed. This really paid off on pages 22 and 23.
This is page 21 for "The Mark" issue 3, volume 2, otherwise known as "The Mark In America", published by Dark Horse Comics in February 1994. Written by Mike Barr, Drawn by Brad Rader.