I do not have one of the Lionel tugs (B&O would be my choice) but did see a real B&O tug in Baltimore. A friend told me that one (do not remember the name at this late date) was tied up at the foot of Hull St.* so I went down there and took a couple of slides of it; now long lost.
* Named after a U. S. Naval hero from either the first or second War of Independence.