what is it?

I recently was notified by my neighbor of this Mamod setup. It is a single cylinder single acting and reversing. I can find nothing on line that identifies a reversing
Mamod.



It was at a thrift store, photos are front & rear. the lever shifts between the two exhausts exiting into the stack.
Art

That's an SE-2a. It's missing the whistle.

Eric,
Thanks, I'm assuming that the "a" behind the SE-2 signifies it's reversible. It's also missing the alcohol pot. I realized it was missing something but since you mentioned it I realized my Wilesco has a whistle so it makes sense. I see a source of parts on line so I will look into replacing the piston since it was a well used and loved engine. Almost forgot any idea what vintage it is?
Art