A fine looking pair of Intermountain Ho Union Pacific F3a and F3b Locos with dcc/sound. Tested to work with all functions. All details in tact even lift rings! I believe these to have QSI dcc. They needed clean track to test as they tended to stall out until I polished my test track. Evidence of repair on front pilot. Original boxes and unopened detail packs, no papers. **Pics are MOST of item description** Timely replies to offers!