B&O Power (Suggestions)

[J3a-614]

From the grand to the--well, let's say it was not one of B&O's bigger engines (linked from the Smaller Locomotives thread; under a request and response about internal combusion power):

http://www.northeast.railfan.net/images/tr_bo25.jpg

Not sure, but the location looks like Riverside Roundhouse in Baltimore; that's the city this was assigned to.