We’ve just added the photo below of FS 2-8-0 No. 741.120 to the website. The photographer, Wikimedia user Harlow81 has released it into the public domain. That having been said…this is one of the odder looking mainline locomotives I’ve ever seen, the gizmo coming out between the second and third drivers and extending above the boiler shell appears to be the smokestack (or chimney).
Mystery Solved: See http://www.rypn.org/forums/viewtopic.php?f=1&t=32162&hilit=Strange+Locomotive