This is a beautifully detailed model. Athearn did an incredible job with this. This locomotive is in good cosmetic condition although there is so many tiny detail pieces that I can’t guarantee it is perfect. The engine is #4006 but the tender is #4005 I’m not sure when it got mix matched. When tested, the locomotive did run but was a bit hesitant as it has not been run in a long time. It might need some fresh lubrication. The sound works but cuts in and out sometimes. I’m not sure what the issues is so bid accordingly. This does not have its original box or instructions. DCC address is set to default 003. What you see is what you get so see photos for details and ask if you have any questions.