The engine is powered through a catenary pole and has been tested but did short out when tested but im sure it will be a rather easy fix. Both the engine and the trailer have opening topped roofs. The engine car is missing one of the billboard signs on the side of the roof line.I also package well and I use computer generated labels with tracking #'s on all my packaging. Please also see my other listings for more train items. 5 star service is what I provide and thats what I expect in return. I will always answer questions about an item and im always willing to resolve any and all disputes. If you have any issues on a particular item please contact me before leaving feedback under 5's. The item "Carette O gauge prewar toy train tin trolley and trailer car powered catenary" is in sale since Sunday, November 1, 2020. This item is in the category "Toys & Hobbies\Model Railroads & Trains\O Scale\Locomotives". The seller is "jeffnmanda3" and is located in Breese, Illinois. This item can be shipped to United States.