I found a decent quality clip of O & W engine 821 & 803 on this Lehigh & New England clip. It's only a couple of seconds, but we get to see 821 at 0:56, and 803 in motion 1:18 seconds into the video.
https://www.youtube.com/watch?v=QXR3jMaqi2U" onclick="window.open(this.href);return false;
https://www.youtube.com/watch?v=QXR3jMaqi2U" onclick="window.open(this.href);return false;
My Flickr Photos http://www.flickr.com/photos/97630304@N02/sets/