Something strange on the depot passing siding, Had to go back and look. Parked heading east. crew not visible. Head end, a big box with HAGX180 & MPM1 on the starboard side. Following were a half dozen cars w/o any I.D. that I could figure out (except the first car behind power had a big A on it). The last of cars had a crane, that looked like it could do a heck of a job digging a ditch. OH, ya one last car, a really strange caboose. Sure would like to see that thing working.